Professor Benita Olivier
Professor of Rehabilitation
School of Sport, Nutrition and Allied Health Professions
Role
Benita Olivier is a Professor of Rehabilitation in the School of Sport, Nutrition and Allied Health Professions at Oxford Brookes University and a clinical-academic at the Oxford Health NHS Foundation Trust in the United Kingdom. Benita is the co-director of the Healthy Living Research Centre under the Oxford Institute of Applied Research (OxInAHR) and the Director of the Wits Cricket Research Hub for Science, Medicine and Rehabilitation at the University of the Witwatersrand, South Africa. In 2013, she completed her PhD in cricket fast bowling injury prevention. In 2019, she graduated with distinction with a second masters in Movement Analysis through the University of Dundee, United Kingdom. Her contribution to scholarship and academic citizenship is visible in many spheres, including publication and postgraduate supervision.
Teaching and supervision
Benita is supervising the research projects of a number of masters and doctoral students on topics related to sports injury and performance, specifically in the sport of cricket, as well as projects in the broader field of musculoskeletal physiotherapy.
Research
Research focus area
Benita is an avid researcher with a high level of research productivity aimed at enabling others to enjoy the health benefits of physical activity, exercise and sport. Her research interests are especially sparked by her quest to reduce injury risk in sports, and mostly, although not exclusively, in cricket.
Centres and Institutes
Healthy Living Research Centre, which forms part of the Oxford Institute of Applied Health Research (OxInAHR)
Research Awards and Achievements
Benita is a South African National Research Foundation-rated researcher, and her passion for research and creating impact, what she often refers to as “changing the world”, has been recognised through awards such as the Wits Health Consortium’s Great Leap Forward Entrepreneurial Academic and Inspiring 50 SA awards in 2021, the Department of Science and Innovation-SARIMA Early Career Excellence Research Management Award and the Johannesburg Women in Sports Confederation President’s Award in 2020. She was a finalist of the TW Kambule-NSTF Emerging Researcher Award in 2020 and was second runner up in the Department of Science and Technology’s Distinguished Young Woman in Science award in 2018. She was chosen as member of the prestigious South African Young Academy of Science (SAYAS) in 2017. In 2014, Benita was the recipient of the Claude Leon Merit Award, the Friedel Sellschop Award for exceptional young researchers. As a wife and mother, she aspires to live a balanced life, with a strong sense of integrity and a drive to positively contribute to the lives of others on a daily basis.
ORCID: https://orcid.org/0000-0001-9287-8301
Google Scholar: https://scholar.google.com/citations?user=FJRBOuYAAAAJ&hl=en
ResearchGate: https://www.researchgate.net/profile/Benita-Olivier
Centres and institutes
Projects
Publications
Journal articles
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Haley CA, Van Aswegen H, Libhaber E, Olivier B , 'Protracted exercise tolerance post-coronavirus disease 2019 in endurance athletes: A survey'
South African Journal of Physiotherapy 80 (1) (2024)
ISSN: 0379-6175 eISSN: 2410-8219Published here -
Jacobs J, Olivier B, Brandt C, Boulle N , 'Anthropometric and biomechanical factors of elite male and female fast bowlers'
Journal of Biomechanics 170 (2024)
ISSN: 0021-9290 eISSN: 1873-2380Published here -
Jacobs J, Olivier B, Brandt C, Jahfta G , 'Physical Profiles of All-rounders, Batters, and Bowlers in Sub-Elite Women’s Cricket'
The Journal of Strength and Conditioning Research 38 (6) (2024) pp.1095-1102
ISSN: 1064-8011 eISSN: 1533-4287AbstractPublished here Open Access on RADARJacobs, J, Olivier, B, Brandt, C, and Jafta, G. Physical profiles of all-rounders, batters, and bowlers in sub-elite women’s cricket. J Strength Cond Res 38(6): 1095–1102, 2024—The unique physical profile of each player's role in sub-elite women's cricket is vital for optimizing performance as these players progress to the elite levels. This quantitative, cross-sectional study investigates the physical profiles of sub-elite women's cricket players as a group and compares these profiles across different player roles. Sub-elite female cricket players in the South African domestic women's cricket league were included in this study. A battery of physical assessments were conducted at the start of the 2022/23 season. The physical assessments included body composition, individual muscle strength testing using dynamometry, 2-km time trial (TT), countermovement jump (CMJ), single-leg jump (SLJ), isometric mid-thigh pull, push-up, and hop test on force plates. A total of 44 female players (20.86 ± 1.6 years) were included in the study. Differences were found in muscle mass (p = 0.004) and peak power (p = 0.040) for all-rounders and bowlers. Player roles presented with different dominant (p = 0.006) and non-dominant (p = 0.066) knee flexion strength. The bowlers' body composition and physical strength profile are compromised compared with batters and all-rounders. There were several physical strength and power differences between pace and spin bowlers in CMJ and SLJ tests for jump height (p = 0.009) and peak power (p = 0.006). Batters performed the best in the 2-km TT. Body composition and musculoskeletal profiles for each player role can be baseline markers in sub-elite women's cricket. Stakeholders can use this information to guide physical preparation for players advancing to elite levels.
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Haley CA, Torres G, Olivier B, Van Aswegen H , 'Cardiorespiratory fitness response to endurance training in athletes post-COVID-19 compared to unaffected athletes'
The South African Journal of Sports Medicine 36 (1) (2024)
ISSN: 1015-5163 eISSN: 2078-516XPublished here -
Obiora LO, Shead D, Olivier B , 'Data sharing considerations and practice among health researchers in Africa: a scoping review'
Digital Health (2024)
ISSN: 2055-2076 eISSN: 2055-2076Abstract -
Haley CA, Olivier B, Van Aswegen H, '‘Every Run Is Hard’: Endurance Athletes’ Experiences of Return to Sports Participation After COVID-19—A Mixed Methods Study'
Translational Sports Medicine (2024)
ISSN: 2573-8488 eISSN: 2573-8488AbstractPublished here -
Weinberg M, Olivier B, Kunene S , 'Shoulder Girdle Disability, Dysfunction, and Pain in Participants with Temporomandibular Joint Disorders: A Cross-Sectional Survey on Prevalence and Associations'
Physiotherapy Canada [online first] (2023)
ISSN: 0300-0508 eISSN: 1708-8313AbstractPublished hereBackground:
There is a rising prevalence of temporomandibular disorders (TMD) and, therefore a need to improve the management of these conditions. No studies have been done to assess the possible associations between the shoulder girdle and the temporomandibular joint (TMJ) in participants with TMD.Objective:
The aim of the study was to estimate the prevalence of disability, dysfunction and pain in the shoulder girdle in participants with TMD. In addition, the association between the disability, dysfunction and pain in the shoulder girdle and temporomandibular joint in participants with temporomandibular disorders was investigated.Methods:
A cross-sectional study was performed where participants were invited to complete an online survey if they received a score of two or more on the TMD-pain screener. The survey included questions on demographics, the TMJ, and the shoulder girdle.Results:
A total of 186 individuals with TMD participated in the study of whom, 56% (n = 104) reported having shoulder pain and 45% (n = 84) reported having previous shoulder treatment. A positive correlation was found between the level of TMD, as indicated by the mean Fonseca Anamnestic index score and the pain (r = 0.29, pConclusion:
The associations found between the pain and disability of the shoulder girdle and TMJ give insight into the relationship between the two areas in participants with TMD. -
Olivier F, Olivier B, MacMillan C, Briel S, 'Effect of neuromuscular injury prevention strategies on injury rates in adolescent males playing sport: a systematic review protocol'
JBI Evidence Synthesis 22 (4) (2023) pp.689-699
ISSN: 2689-8381 eISSN: 2689-8381AbstractPublished here Open Access on RADARObjective:
This review will assess the effectiveness of neuromuscular injury prevention strategies on injury rates among adolescent males playing sports.
Introduction:
Adolescent athletes are predisposed to injuries during this period of growth. Growth-related injury risk factors can be mitigated by implementing appropriate neuromuscular injury prevention strategies. This is the first review to include all sporting disciplines in summarizing the components and assessing the effectiveness of injury prevention strategies in the adolescent male population.
Inclusion criteria:
Randomized controlled trials investigating adolescent males, between the ages of 13 and 18 years, participating in organized sports, in any setting and level of participation, will be included. Studies reporting on participants with growth abnormalities will be excluded.
Methods:
Databases searched will include MEDLINE (Pubmed), CINAHL Complete (EBSCO), CLinicalKey, SPORTDiscus (EBSCO), Physiotherapy Evidence Database (PEDro), Scopus (Elsevier), ScienceDirect (Elsevier) MasterFILE Premier (EBSCO), Academic Search Complete (EBSCO), Cochrane Central Register of Controlled Trials (CENTRAL) and ClincalTrials.gov. Gray literature and unpublished studies will be searched via Health and Medical Complete (ProQuest Dissertations & Theses). Study screening and selection against inclusion criteria will be performed. Data extraction and critical appraisal will be performed using the standardized JBI templates and checklists for qualitative research. All stages will be performed by 2 independent reviewers, with conflicts resolved by a third reviewer.
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Macmillan C, Olivier B, Benjamin-Damons N, Wood WA, Obiora OL, 'Altered sagittal plane mechanics is associated with the Functional Movement Screen Deep Squat score'
South African Journal of Physiotherapy 79 (1) (2023)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereBackground: The Functional Movement Screen (FMS) assesses the quality of movements, including the deep squat (DS), which is used in sports settings. The validity of the individual item scores has yet to be established.
Objectives: To investigate the validity of the FMS DS by comparing the sagittal plane kinematics of participants who achieve different observer scores.
Method: Seventeen injury-free, adolescent male cricket bowlers were assessed. The movement was captured using the Optitrack® motion capture system. Simultaneously, observers scored participants’ execution of the DS according to the standard FMS scoring criteria. Participants were grouped into Group 1 (lowest score), Group 2 (altered movement mechanics) or Group 3 (perfect score) according to observer scores. Specific joint angles of each group were compared using the Kruskal–Wallis and Mann–Whitney U tests.
Results: There were significant differences in the degree to which the femur passed the horizontal between Group 3 and Group 1 (p = 0.04, r = 0.61) and Group 2 and Group 1 (p = 0.03, r = 0.66) and the difference in the degree to which the torso was kept vertical between Group 3 and Group 1 (p = 0.02, r = 0.66) and Group 2 and Group 1 (p = 0.02; r = 0.72).
Conclusion: Kinematic differences exist between participants who achieve different observer scores for the FMS DS.
Clinical implications: While differences in sagittal plane kinematics have been observed in participants scoring high on the FMS DS and participants scoring low, further investigation into the validity of the frontal plane kinematics is warranted, as well as the concurrent validity of the individual scoring criteria.
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Olivier B, Naude J, Mnguni N, Thotse M, Phalandwa P, Ferrao P, Saragas NP, 'Foot and Ankle Injuries in Elite South African Cricketers: A Descriptive Analysis of Injury Surveillance Data'
Indian Journal of Orthopaedics 57 (2023) pp.1592-1599
ISSN: 0019-5413 eISSN: 1998-3727AbstractPublished here Open Access on RADARIntroduction.
Injury surveillance is an important part of injury risk reduction in the sporting population. This study describes the type, side (dominant or non-dominant), occurrence, impact, activity of onset, and severity of foot and ankle injuries in elite South African male and female cricketers.Methods.
Foot and ankle injuries sustained by elite cricket players between 2018 and 2021, obtained from the records of Cricket South Africa, were descriptively analysed.Results.
A total of 104 foot and ankle injuries in 82 players were recorded. The majority (n = 100; 96%) of injuries were on the non-dominant side. Bowling (n = 31; 30%) and fielding (n = 20; 19%) contributed to most injuries. The majority were first-time (n = 83; 80%) and non-impact injuries (n = 62; 60%). Fifty percent (n = 52) of injuries rendered players unable to participate in at least one match or practice session. Lateral ankle ligament injury was the most common injury sustained (n = 36; 35%).Conclusion.
The findings from this study can inform future researchers and assist healthcare service needs relating to injury risk reduction and management programmes. Effective rehabilitation programmes may reduce the risk of reinjury. Ideally, these programmes need to be role specific. -
Olivier B, Boulle N, Jacobs J, Obiora OL, MacMillan C, Liebenberg J, McErlain-Naylor S, 'Kinematic differences between left- and right-handed cricket fast bowlers during the bowling action'
Indian Journal of Orthopaedics 35 (1) (2023)
ISSN: 0019-5413 eISSN: 1998-3727AbstractPublished hereBackground: Despite differences between left- and right-handed athletes in other sports, minimal evidence exists regarding biomechanical similarities and differences between left- and right-handed cricket fast bowlers performing an equivalent task.
Objectives: This study aimed to compare the kinematics between left and right-handed fast bowlers performing an equivalent task (i.e. bowling ‘over the wicket’ to a batter of the same handedness as the bowler).
Methods: Full body, three-dimensional kinematic data for six left-handed and 20 right-handed adolescent, male, fast bowlers were collected using the Xsens inertial measurement system. Time-normalised joint and segment angle time histories from back foot contact to follow-through ground contacts were compared between groups via statistical parametric mapping. Whole movement and subphase durations were also compared.
Results: Left-handed players displayed significantly more trunk flexion from 49%-56% of the total movement (ball release occurred at 54%; p = 0.037) and had shorter back foot contact durations on average (0.153 vs 0.177 s; p = 0.036) compared to right-handed players.
Conclusion: Left- and right-handed bowlers displayed similar sagittal plane kinematics but appeared to use non-sagittal plane movements differently around the time of ball release. The kinematic differences identified in this study can inform future research investigating the effect of hand dominance on bowling performance and injury risk.
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Christie CJ, McEwan K, Munro CE, King GA, Le Roux A, Olivier B, Jackson B, Manjra S, MacMillan C, Pote L, 'Do South African international cricket pace bowlers have similar bowling volume and injury risk associates compared to other elite fast bowlers?'
International journal of Sports Science & Coaching [online first] (2023)
ISSN: 1747-9541 eISSN: 2048-397XAbstractPublished hereBackground.
Although many cricket-playing nations have conducted research on bowling volume (BV) and injury risk, this relationship amongst international South African pace bowlers is yet to be investigated. Environmental, socio-economic and training strategy differences warrant similar research in a South African context. The purpose of this preliminary study was to establish whether South African pace bowlers have similar BV and injury associates compared to other elite fast bowlers.Methods.
This study was a prospective, observational, cohort study that monitored match and training BV and injuries amongst pace bowlers playing for the South African national team between April 2017 and April 2019. A sample of convenience that included 14 bowlers was selected. Bowling volume was quantified as the number of deliveries bowled during training and competition. Acute-, chronic- and acute:chronic BV ratios were independently modelled as association variables.Results.
There were 39 injuries with the most being to the lumbar spine (25.64%). Moderate-to-low and a moderate-to-high acute:chronic bowling load ratios were associated with a lower risk of injury. Chronic bowling load was associated with injury (z = 2.82, p = 0.01). A low acute workload, low chronic workload, moderate-high chronic workload and moderate-low acute:chronic ratio were also associated with an increased risk of injury.Conclusion.
These findings confirm that there appears to be a dose–response effect between training BV and the likelihood of an injury occurring with a moderate-to-low and a moderate-to-high BV ratio being optimal. Considering the small sample size, the findings should be interpreted with caution. -
Quinn S-L, Olivier B, McKinon W, 'The efficacy of injury screening for lower back pain in elite golfers'
South African Journal of Physiotherapy 79 (1) (2023)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereBackground: Injury prevention is a growing focus for golfers in general and for elite golfers in particular. Movement screening has been proposed as a possible cost-effective means of identifying underlying risk factors and is widely utilised by therapists, trainers and coaches.
Objectives: Our study aimed to establish whether results from movement screening were associated with subsequent lower back injury in elite golfers.
Methods: Our prospective longitudinal cohort study with one baseline time point included 41 injury-free young elite male golfers who underwent movement screening. After this, the golfers were monitored for 6 months for lower back pain.
Results: Seventeen golfers developed lower back pain (41%). Screening tests that were able to differentiate golfers who developed and those who did not develop lower back pain, included: rotational stability test on the non-dominant side (p = 0.01, effect size = 0.27), rotational stability test on the dominant side (p = 0.03; effect size = 0.29) and plank score (p = 0.03; effect size = 0.24). There were no differences observed in any other screening tests.
Conclusion: Out of 30 screening tests, only three tests were able to identify golfers not at risk of developing lower back pain. All three of these tests had weak effect sizes.
Clinical implications: Movement screening was not effective in identifying elite golfers at risk of lower back pain in our study.
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Snyders C, Schwellnus M, Sewry N, Kaulback K, Wood P, Seocharan I, Derman W, Readhead C, Patricios J, Olivier B, Jordaan E, 'Symptom Number and Reduced Preinfection Training Predict Prolonged Return to Training after SARS-CoV-2 in Athletes: AWARE IV'
Medicine & Science in Sports & Exercise 55 (1) (2023) pp.1-8
ISSN: 0195-9131 eISSN: 1530-0315AbstractPURPOSE: This study aimed to determine factors predictive of prolonged return to training (RTT) in athletes with recent SARS-CoV-2 infection. METHODS: This is a cross-sectional descriptive study. Athletes not vaccinated against COVID-19 ( n = 207) with confirmed SARS-CoV-2 infection (predominantly ancestral virus and beta-variant) completed an online survey detailing the following factors: demographics (age and sex), level of sport participation, type of sport, comorbidity history and preinfection training (training hours 7 d preinfection), SARS-CoV-2 symptoms (26 in 3 categories; "nose and throat," "chest and neck," and "whole body"), and days to RTT. Main outcomes were hazard ratios (HR, 95% confidence interval) for athletes with versus without a factor, explored in univariate and multiple models. HR < 1 was predictive of prolonged RTT (reduced % chance of RTT after symptom onset). Significance was P < 0.05. RESULTS: Age, level of sport participation, type of sport, and history of comorbidities were not predictors of prolonged RTT. Significant predictors of prolonged RTT (univariate model) were as follows (HR, 95% confidence interval): female (0.6, 0.4-0.9; P = 0.01), reduced training in the 7 d preinfection (1.03, 1.01-1.06; P = 0.003), presence of symptoms by anatomical region (any "chest and neck" [0.6, 0.4-0.8; P = 0.004] and any "whole body" [0.6, 0.4-0.9; P = 0.025]), and several specific symptoms. Multiple models show that the greater number of symptoms in each anatomical region (adjusted for training hours in the 7 d preinfection) was associated with prolonged RTT ( P < 0.05). CONCLUSIONS: Reduced preinfection training hours and the number of acute infection symptoms may predict prolonged RTT in athletes with recent SARS-CoV-2. These data can assist physicians as well as athletes/coaches in planning and guiding RTT. Future studies can explore whether these variables can be used to predict time to return to full performance and classify severity of acute respiratory infection in athletes.Published here -
MacMillan C, Olivier B, Benjamin-Damons N, 'The association between physical fitness parameters and in-season injury among adult male rugby players: a systematic review'
The Journal of Sports Medicine and Physical Fitness 62 (10) (2022) pp.1345-1358
ISSN: 0022-4707 eISSN: 1827-1928AbstractPublished hereINTRODUCTION: The high prevalence of injury among rugby players emphasizes the need for research related to injury risk factors. Physical fitness-related risk factors are likely culprits contributing to both contact and non-contact injuries. Establishing associations between preseason measured physical fitness aspects and injury risk, not only provide players’ baseline fitness parameters but could also identify injury prone players, thereby contributing to injury prevention strategies. Therefore, the objective of this review was to assess and summarize scientific literature related to the association between preseason measured physical fitness tests and in-season injury among male rugby players.
EVIDENCE ACQUISITION: A systematic review was performed in compliance with the PRISMA 2020 Guidelines. This review considered observational, prospective cohort study designs. Studies that included male rugby (rugby union, rugby league, Australian football rules and rugby sevens) players aged 18 years or above from all levels of participation, evaluating the association between physical fitness test outcome and injury, were considered for inclusion. The three-step search strategy aimed at finding both published and unpublished studies in any language. Searched databases included Medline via PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Physiotherapy Evidence Database (PEDro), the Cochrane Controlled Trials Register in the Cochrane Library, ProQuest 5000 International, ProQuest Health and Medical Complete, EBSCO MegaFile Premier, SPORTDiscus with Full Text, SCOPUS and Science Direct. Key words used were “rugby,” “injury,” “physical fitness,” and “risk factors.” Papers that met the inclusion criteria were assessed by two independent reviewers for methodological validity prior to inclusion in the review using standardized critical appraisal tool for cohort studies from the Joanna Briggs Institute (JBI SUMARI).
EVIDENCE SYNTHESIS: A total of 16 studies were eligible for inclusion in this review. The mean critical appraisal score was 82.63% (SD=17.86). Forty-meter sprint speed was associated with injury in all three (100%) studies that included the test. Inconsistencies in the statistical analysis, however, make comparison difficult. None of the studies that investigated upper (N.=1) and/or lower body power (N.=3) identified power as a risk factor. Conflicting results were found for the association between strength, flexibility, cardiorespiratory fitness, and injury.
CONCLUSIONS: Identifying factors associated with injury risk is an important step in the injury prevention paradigm. Once identified, players can be screened for risk factors prior to participation in sport. Interventions, based on screening results, which not only improve performance but also decrease players’ risk of sustaining injuries (i.e., physical fitness related risk factors), provide additional incentive for compliance. Overall, this review highlights the inconsistency in testing methods used to gauge specific physical fitness constructs among rugby players, limiting the extent to which comparison of results and pooling of data is possible.
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Obiora OL, Shead DA, Olivier B, 'Perceptions of human movement researchers and clinicians on the barriers and facilitators to health research data sharing in Africa'
Physiotherapy Theory and Practice: An International Journal of Physical Therapy [online first] (2022)
ISSN: 0959-3985 eISSN: 1532-5040AbstractINTRODUCTION: The benefits of research data sharing abound in the literature. However, some factors define how researchers and clinicians approach the challenges surrounding sharing human movement health research data. PURPOSE: To describe the perceptions of human movement researchers and clinicians on the barriers and facilitators to research data sharing in Africa. METHOD: A qualitative descriptive design with a purposive sampling method was used. In-depth interviews with human movement researchers and clinicians across Africa were conducted online via Microsoft Teams. Sixteen (n = 16) participants took part in this study. This sample size was representative of East, West, Northern, and Southern Africa. Efforts made to engage with participants in Central Africa were unsuccessful. RESULT: Five themes emerged: 1) the researcher-clinician gap; 2) technological pros and cons in Africa; 3) cost matters; 4) bureaucracy and ethical factors; and 5) the unique African perspective. Mainly, barriers rather than facilitators to data sharing exist among African human movement researchers and clinicians. CONCLUSION: There needs to be a societal and psychological shift through reorientation to encourage data sharing among African human movement researchers and clinicians.Published here -
Jacobs J, Olivier B, Dawood M, Perera NKP, 'Prevalence and incidence of injuries among female cricket players: a systematic review and meta-analysis'
JBI Evidence Synthesis 20 (7) (2022) pp.1741-1790
ISSN: 2689-8381 eISSN: 2689-8381AbstractOBJECTIVE: The objective of the review was to describe the incidence and prevalence of injuries among female cricket players of all ages, participating in all levels of play. INTRODUCTION: Cricket, a bat-and-ball sport, is becoming popular among women of all ages and abilities worldwide. However, cricket participation carries a risk of injury. Injuries negatively affect sport participation, performance, and short- and long-term health and well-being. Injury prevention, therefore, is the key to safe, long-term cricket participation as a physical activity goal. Epidemiological data are needed to underpin evidence-based injury-prevention strategies. INCLUSION CRITERIA: Studies reporting incidence and prevalence of injuries in female cricket players of all ages, participating in all levels of play, were included in this review, including studies that report data by sex or by sport. Studies were excluded if they did not have enough data to calculate prevalence or incidence, did not distinguish female injury data from male injury data, focused on athletes participating in other sports, or focused on case studies. METHODS: A systematic review and meta-analyses were conducted according to the JBI and PRISMA 2020 guidelines. MEDLINE, SPORTDiscus, Physiotherapy Evidence Database (PEDro), EBSCO MasterFILE Premier, EBSCO CINAHL Complete, ProQuest Health and Medical Complete, Scopus, and ScienceDirect were systematically searched from inception to August 2021. Additionally, Cochrane Central Register of Controlled Trials and ClinicalTrials.gov were searched. EBSCO MegaFile Premier, OpenGrey (SIGLE), WorldCat, Grey Matters, Grey Literature, and Google Scholar were searched for gray literature. Full-text articles that met the inclusion criteria were critically appraised using tools from JBI, and were extracted and synthesized in narrative summary and tabular format. Three meta-analyses were conducted: injury incidence rates, injury prevalence proportions, and injury incidence proportions. Heterogeneity was assessed using the I2 statistic and the random-effects model. RESULTS: Of the 7057 studies identified, 4256 were screened after duplicates were removed. A total of 23 studies met the inclusion criteria. Risk of bias was low for 21 studies. The injury incidence rate for elite cricket was 71.9 (SE 21.3, 95% CI 30.2-113.6) injuries per 1000 player hours, time-loss injury incidence rate was 13.3 (SE 4.4, 95% CI 4.6-22.0) injuries per 1000 player hours, and non-time-loss injury incidence rate was 58.5 (SE 16.9, 95% CI 25.6-91.7) injuries per 1000 player hours. The injury prevalence proportion for community to elite cricket was 65.2% (SE 9.3, 95% CI 45.7-82.3) and the injury prevalence proportion for community cricket was 60% (SE 4.5, 95% CI 51.1-68.6). The injury incidence proportion for community cricket was 5.6 (SE 4.4, 95% CI 0.1-18.3) injuries per 10,000 participants. Elite cricket players were more frequently injured than community cricket players. The most prevalent body regions injured were the shoulder and knee, and most were sustained by fast bowlers. Injuries to the hand, wrist, and fingers had the highest incidence and were most sustained by fielders. CONCLUSIONS: The study's findings can help stakeholders (including players, coaches, clinicians, and policymakers) make informed decisions about cricket participation by informing and implementing strategies to promote cricket as a vehicle for positive public health outcomes. This review also identified gaps in the available evidence base, and addressing these through future research would enhance women's cricket as a professional sport. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO CRD42020166052.Published here -
Briel S, Olivier B, Mudzi W, 'Scapular force: Couple ratios in healthy shoulders - An observational study reflecting typical values'
South African Journal of Physiotherapy 78 (1) (2022)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: Scapular stability is primarily maintained through the action of the scapular stabilisers and not through bony stability. The values of the force couple ratios of the scapular stabilisers remain largely unknown. Objectives: To determine typical scapular force couple strength ratios in the pain-free shoulders of healthy female and male participants. Methods: This was a quantitative cross-sectional study. The muscle strength of the serratus anterior upper and lower fibres, the upper, middle and lower trapezius and the rhomboids (in both shoulders) were determined in kilogram force (kgf) using a handheld dynamometer. The ratios of the force couples of the scapulae of both shoulders of the participants were calculated. Participants (both female and male) with healthy shoulders were recruited from the general public (a local university, schools, church groups and sport clubs). We mainly utilised descriptive analysis. Statistical significance was set at 5%. Results: Force couple ratios were as follows (means, with SD). Dominant arm in women: upper trapezius:lower trapezius 3.63 (0.97); serratus anterior lower fibres:lower trapezius = 1.97 (0.27); middle trapezius:serratus anterior upper fibres = 0.40 (0.10); serratus anterior lower fibres:rhomboids = 1.41 (0.21); lower trapezius:rhomboids = 0.74 (0.17). Dominant arm in men: upper trapezius:lower trapezius = 2.70 (0.72); serratus anterior lower fibres:lower trapezius = 2.15 (0.45); middle trapezius:serratus anterior upper fibres = 0.47 (0.12); serratus anterior lower fibres:rhomboids = 1.40 (0.31) and lower trapezius:rhomboids = 0.17 (0.6). Conclusion: Specific force couple strength ratios were determined, between and within the nondominant and the dominant arms of the shoulders of healthy women and men. Clinical implications: Scapular stability is mainly maintained through the optimal force couple balance of the scapular stabilisers.Published here -
Quinn S-L, Olivier B, McKinon W, 'Lower Quadrant Swing Biomechanics Identifies Golfers With Increased Risk of Low Back Pain: A Prospective Longitudinal Cohort Study'
Journal of Sport Rehabilitation 31 (8) (2022) pp.1041-1051
ISSN: 1056-6716 eISSN: 1543-3072AbstractPublished hereContext: Elite golfers have a high incidence of low back pain. Recent reviews have emphasized the need for investigation into how to prevent low back pain in golfers, prompting the current study. Design: Prospective longitudinal cohort study. Methods: Forty-one injury-free golfers were included in this study. At baseline, lower quadrant joint angles and club and ball performance were measured while each golfer performed 10 drives. The golfers were then monitored for 6 months and were allocated into 2 groups depending on whether or not they developed low back pain. The initial, baseline kinematic variables of the low back pain group and the uninjured group were then compared. Results: Over the 6-month monitoring period, 17 (41%) of the golfers developed low back pain. At baseline assessment, the low back pain group had 4° less lead ankle dorsiflexion at setup (P = .01; effect size = 0.82), 6° less lead knee flexion at the top of the backswing (P = .05; effect size = 0.64), 6° less lead ankle dorsiflexion at the top of the backswing (P = .01; effect size = 0.82), 6° more trail hip adduction at the top of the backswing (P = .02; effect size = 0.79), 9° more trail knee flexion at impact (P = .05; effect size = −0.64), and 6° more trail hip adduction at the end of follow through (P
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Makendo I, Tawa N, Olivier B, Kikuvi G, 'Level of disability and risk of chronification among patients presenting with neck pain at a tertiary hospital'
East African Medical Journal 99 (5) (2022) pp.4832-4839
ISSN: 0012-835X eISSN: 0012-835XAbstractPublished hereObjective: The aim of this study was to determine the level of disability and risk of chronification among patients presenting with neck pain at tertiary hospital in Kenya.
Design: A cross-sectional descriptive study.
Setting: Physiotherapy and general outpatient clinics at Nakuru Level V Hospital in Nakuru, Kenya.
Subjects: 45 patients who presented with neck pain
Main outcome measures: Neck Disability Index (NDI) and Orebro Musculoskeletal Pain Screening Questionnaire (OMPSQ) to screen for disability and pain chronicity respectively.
Method: Data was collected using Neck Disability Index (NDI) and Orebro Musculoskeletal Pain Screening Questionnaire (OMPSQ). It was then analyzed using the statistical package for the social sciences (SPSS) version 25.0 for descriptive and inferential statistics.
Results- Out of the 45 participants, majority were female 73.3% (n=33), 82.2 % (n=37) were aged 36 years and above, 68.9% (n=31) were married, 42% (n=19) were office workers and 60% (n=27) were employed. Most of the participants (55.5%) were at low risk of chronification and 56% had a moderate disability. The mean NDI score was highest among the patients who scored high on the (OMPSQ) (45.5). There were significant mean differences between the domains of pain chronification with Orebro score.
Conclusion: Persistence and high pain duration in neck pain patients seems to be associated with high levels of disability. The study emphasizes on the importance of educating and increasing awareness of neck pain to prevent chronicity and reduce its economic burden. -
Peyper K, Olivier B, Green A, 'The cycle ergometer test is not a reliable alternative to the countermovement jump in the assessment of power output'
The South African Journal of Sports Medicine 34 (1) (2022) pp.1-5
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBackground: Rugby union is a physically demanding collision sport that requires optimal neuromuscular function
for maximal power output, with mechanical power an integral component of performance. Peak power (Pp) and
relative Pp are parameters of neuromuscular function commonly assessed through the countermovement jump
(CMJ) as a measure of fatigue. The Wattbike cycle ergometer test (CET) is a non-load bearing method of evaluating lower limb power. The cost-effective CET could therefore offer a viable alternative to the CMJ.
Objectives: This study aimed to determine the concurrent validity of the CMJ and CET.
Methods: Thirty-eight professional rugby union players performed twelve CMJs on a force platform with four loads
(bodyweight: BW-CMJ; 20kg: 20-CMJ; 40kg: 40-CMJ and 60kg: 60-CMJ) and a six second peak power (6PPO) CET assessment on a Wattbike ergometer.Results: CMJ power outputs were [BW-CMJ: Pp - 3101±648 W; 20-CMJ: Pp - 2724±513 W; 40-CMJ: Pp - 2490±496 W; 60-CMJ: Pp - 2238±366 W] and CET [Pp – 1310±161 W]. None of the CMJ-Pp values showed relationships with any CET power variables. Large (r = 0.51-0.63; p = 0.000 – 0.001) relationships
were found to be between relative CMJ and relative CET power outputs. Bland-Altman plots, which were used to
determine the level of agreement between the two assessments, showed the agreement between the tests was
poor.
Conclusion: Though positive relationships existed between relative CMJ and relative CET power variables, analyses of the level of agreement in the Bland-Altman plots suggest that the two power assessment methods are not interchangeable measures of power. -
Olivier F, Olivier B, Mnguni N, 'The “core” of performance in adolescent cricket pace bowlers: Trunk muscle stability, maybe, but not strength-endurance and thickness'
The South African Journal of Sports Medicine 34 (1) (2022) pp.1-6
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBackground: The trunk connects the upper and lower limbs and transfers energy during movement. Exploring the role of the trunk muscles in bowling performance affords us the opportunity to uncover potential mechanisms to improve bowling performance.
Objectives: To investigate the association between bowling performance and trunk muscle stability, strength-endurance and thickness in adolescent pace bowlers.
Methods: Adolescent pace bowlers participated in this crosssectional study. Trunk muscle stability was measured using Sahrmann’s Stability Scale, strength-endurance using the Bourbon Trunk Muscle Strength Test and thickness of the abdominal wall and lumbar multifidus muscles using ultrasound imaging.
Results: Forty-six pace bowlers with a mean age of 15.9 ±1.2 years participated. The average ball release speed was 109.2±11.8 km.h-1 . This measurement was higher in level four of stability than in level two (mean difference 22.2 ± SD 6.8 km.h-1; p= .018). No link between ball release speed and strength-endurance could be found. Multiple correlations of moderate strength (r > 0.4) exist between ball release speed and absolute trunk muscle thickness with height and weight as confounding factors. The relationship between accuracy and the trunk muscle variables investigated in this study is weak.
Conclusion: Bowlers with better trunk muscle stability bowled faster than those with a lower level of trunk stability, irrespective of their age, height and weight. Trunk muscle thickness correlated with ball release speed; however, confounding factors such as height and weight play a role and therefore, findings need to be interpreted with caution. -
Obiora OL, Olivier B, Shead DA, Withers A, 'Data sharing practices of health researchers in Africa: a scoping review protocol'
JBI Evidence Synthesis 20 (2) (2022) pp.681-688
ISSN: 2689-8381 eISSN: 2689-8381AbstractOBJECTIVE: The aim of the review is to map the existing evidence regarding the data-sharing practices of health researchers in African countries. This review will also identify perceptions; barriers; facilitators; ethical-, legal-, and author-reported recommendations; institutional- and funding-related aspects that are being considered by African health researchers on data sharing in Africa and, as a result, identify areas for development and improvement in health care on the continent. INTRODUCTION: The sharing of health-related data has been widely discussed in the literature. However, sharing health-related data has yet to become a common practice among health researchers in Africa, which bears a large burden of the global health diseases. The sharing of health research data could lead to greater development and improvement in health care in Africa. INCLUSION CRITERIA: This review will incorporate studies that report on data sharing among health researchers in Africa. All primary, secondary, and gray literature that report on the practice of data sharing among health researchers in Africa will be included. Studies on data sharing on topics other than health-related data will be excluded. No language restrictions will be applied. METHODS: The JBI scoping review methodological framework will be adopted. An initial search of databases such as MEDLINE (PubMed), Scopus, LILAC, and Web of Science will be conducted. All search results will be screened and relevant data extracted by two independent reviewers. Data extracted will be exported into JBI SUMARI. The findings will be presented in the final scoping review report and illustrated in a PRISMA flow diagram.Published here -
Olivier B, Olivier F, Mnguni N, Obiora O, 'Asymmetry in internal oblique muscle thickness: not the key to a cricket fast bowler’s performance'
International journal of Sports Science & Coaching 17 (6) (2022) pp.1435-1444
ISSN: 1747-9541 eISSN: 2048-397XAbstractPublished herePurpose
Previous studies found that trunk muscle asymmetry may play a role in preventing injury in cricket fast bowlers, while the association with bowling performance has not been investigated. This study aims to describe the side-to-side differences in trunk muscle thickness and determine the association between bowling performance and these side-to-side differences in trunk muscle thickness in adolescent fast bowlers.
Methods
In this observational cross-sectional study, bowling performance, namely ball release speed and bowling accuracy, was recorded in adolescent fast bowlers. Ultrasound imaging measured external oblique, internal oblique, transversus abdominis and lumbar multifidus muscle thickness.
Results
Fast bowlers (n = 46) with a mean age of 15.9 (±1.2) years participated. On the non-dominant side, the external oblique and internal oblique at rest were thicker than on the dominant side (external oblique: p = 0.011, effect size = 0.27; internal oblique: p
Conclusions
No relationship between bowling performance and side-to-side differences in internal oblique muscle thickness could be established, while more symmetrical external oblique muscles may be linked to faster ball release speeds.
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Olivier B, Obiora OL, MacMillan C, Finch C, 'Injury surveillance in community cricket: A new innings for South Africa'
South African Journal of Physiotherapy 78 (1) (2022)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished injury rates amongst elite and club-level youth cricketers highlight the need to implement injury risk-reducing strategies amongst the youth cricketing population. Data from sports injury surveillance systems are a prerequisite for the development and evaluation of strategies to reduce injury risk. Therefore, collecting injury surveillance data is a positive move towards reducing injuries in cricket. In South Africa, a systematic, standardised, evidence-informed injury surveillance system currently does not exist for community levels of play, namely, in cricket-playing high schools and cricket clubs. Although injury surveillance systems exist at elite levels, the obvious differences in elite versus community cricket settings mean that these systems cannot be implemented in their current form at community-level cricket. An innovative model is required to implement an injury surveillance system in community cricket. Clinical implications: This article proposes and describes a new research-practice partnership model to implement a systematic, standardised, evidence-informed injury surveillance system at cricket-playing high schools or cricket clubs within South Africa. Once this model has been employed, database systems will need to be established to allow long-term data management and sharing.Published here -
Stephen S, Brandt C, Olivier B, 'Neck Pain and Disability: Are They Related to Dysfunctional Breathing and Stress?'
Physiotherapy Canada 74 (2) (2022) pp.158-164
ISSN: 0300-0508 eISSN: 1708-8313AbstractPublished herePurpose: People with neck pain are likely to have negative respiratory findings. The purpose of this study was to investigate the relationship between neck pain and dysfunctional breathing and to examine their relationship to stress. Method: This cross-sectional study included 49 participants with neck pain and 49 age- and sex-matched controls. We measured neck pain using the numeric rating scale (NRS); neck disability using the Neck Disability Index (NDI); dysfunctional breathing using the Nijmegen Questionnaire (NQ), Self-Evaluation of Breathing Questionnaire (SEBQ), breath hold time, and respiratory rate (RR); and stress using the Perceived Stress Scale (PSS). Results: Participants with neck pain scored higher on the NQ (p 0.50; 95% CI: 0.25, 0.68 and 0.33, 0.73, respectively) and PSS scores (r > 0.50; 95% CI: 0.29, 0.78 and 0.31, 0.73, respectively). SEBQ scores showed a fair correlation with NRS scores and RR a fair correlation with NDI scores. Conclusions: Participants with neck pain had more dysfunctional breathing symptoms than participants without neck pain, and dysfunctional breathing was correlated with increased neck disability and increased stress. The NQ and SEBQ can be useful in assessing dysfunctional breathing in patients with neck pain. =
Objectif : les personnes qui éprouvent des douleurs cervicales sont susceptibles d’avoir des problèmes respiratoires. La présente étude visait à examiner le lien entre les douleurs cervicales et une respiration dysfonctionnelle, de même que leur lien avec le stress. Méthodologie : la présente étude transversale incluait 49 participants ayant des douleurs cervicales et 49 sujets témoins appariés. Les chercheurs ont mesuré la douleur cervicale au moyen de l’échelle d’évaluation numérique (ÉÉN); les incapacités cervicales au moyen de l’indice d’incapacité cervicale (IIC); la respiration dysfonctionnelle au moyen du questionnaire de Nijmegen (QN), du questionnaire d’autoévaluation de la respiration (QAÉR), de la durée de retenue de la respiration et de la fréquence respiratoire (FR); et le stress au moyen de l’échelle de perception du stress (ÉPS). Résultats : les participants qui éprouvaient des douleurs cervicales obtenaient des résultats plus élevés que les sujets témoins au QN (p 0,50; IC à 95 %, 0,25, 0,68 et 0,33, 0,73, respectivement) et les scores de l’ÉPS (r > 0,50; IC à 95 %, 0,29, 0,78 et 0,31, 0,73, respectivement). Les scores du QAÉR ont révélé une corrélation claire avec les scores de l’ÉÉN et la FR, ainsi qu’avec les scores de l’IIC. Conclusions : les participants qui éprouvaient des douleurs cervicales avaient plus de symptômes de respiration dysfonctionnelle que les participants sans douleur cervicale, et la respiration dysfonctionnelle était corrélée avec une incapacité cervicale et un stress accrus. Le QN et le QAÉR peuvent être utiles pour évaluer la respiration dysfonctionnelle chez les patients éprouvant des douleurs cervicales.
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Chebet H, Olivier B, Karuguti M, Opondo E, 'The prevalence and dynamic balance ability of long-distance Kenyan runners with Achilles Tendinopathy'
African Journal for Physical Activity and Health Sciences 27 (4) (2021) pp.516-532
ISSN: 2411-6939 eISSN: 2411-6939AbstractPublished hereAchilles Tendinopathy (AT) can cause disability among athletes involved in running events and often leads to an early exit from a sporting career. AT has been associated with intense, prolonged, and repetitive functional demands exerted on the achilles tendon. It is thought to affect the athlete’s dynamic balance ability and performance. A cross-sectional study was conducted in high altitude training camps among long-distance Kenyan runners (N=410) to examine the prevalence of this musculoskeletal dysfunction and the runners’ dynamic balance ability as measured using the Star Excursion Balance Test (SEBT). The prevalence of AT among the long-distance runners was 13.9% (n=57), comprising 42 men (73.7%) and 15 women (26.3%), with a median age of 27 years. A total of 61.4% (n=35) of the runners covered on average 151- 200 km per week. The mean weekly training mileage was 170.0 km with an average pace of 3.3 minutes per kilometer. The mean composite SEBT scores for the dominant and non-dominant legs were 81.85 and 82.42%, respectively. The average normalised reach distances on SEBT were 72.9%, 84.3%, and 89.2% for anterior, posterolateral, and posteromedial directions, respectively. There were statistically significant mean differences in scores between male and female runners, with these being higher in males compared to females (p
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Kaplan S, Olivier B, Obiora OL, 'Effectiveness of surgical and non-surgical management strategies in patients with chronic exertional compartment syndrome of the anterior compartment of the leg: a systematic review protocol'
JBI Evidence Synthesis 19 (11) (2021) pp.3198-3205
ISSN: 2689-8381 eISSN: 2689-8381AbstractPublished hereOBJECTIVE: The objective of this review is to evaluate the effectiveness of surgical management versus non-surgical management on pain, range of motion, intracompartmental pressure values, patient satisfaction, recurrence of symptoms, return to activity, function, strength, and sensation in patients diagnosed with chronic exertional compartment syndrome of the anterior compartment of the leg. INTRODUCTION: Chronic exertional compartment syndrome is the most prevalent cause of exercise-induced leg pain in athletes. Current evidence suggests that the best methods for management include activity modification or cessation, injection of botulinum toxin into the affected compartment, or surgical intervention. Due to the limited number and quality of studies available, the evidence needs to be synthesized to pool findings from current research and to identify gaps in the literature. INCLUSION CRITERIA: This review will consider studies that include people with chronic exertional compartment syndrome of the anterior compartment of the leg diagnosed through a combination of elevated intracompartmental pressure values and patient history. Studies that include patient-reported outcome measures will be included. METHODS: MEDLINE, SPORTDiscus, Physiotherapy Evidence Database, MasterFILE Premier, CINAHL Complete, ProQuest Health and Medical Complete, Scopus, and Science Direct will be searched from 1956 to date. Gray literature databases will also be searched. Two reviewers will independently retrieve and screen full-text studies, critically appraise included studies, and extract data. Meta-analyses will be performed where possible. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO CRD42020189661.
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Swart JJW, Olivier B, 'Effectiveness of exercise interventions to prevent shoulder injuries in athletes: a systematic review protocol'
JBI Evidence Synthesis 19 (10) (2021) pp.2847-2856
ISSN: 2689-8381 eISSN: 2689-8381AbstractPublished hereOBJECTIVE: This review will evaluate the effectiveness of exercise intervention versus no intervention or alternate intervention to prevent shoulder injuries in athletes. INTRODUCTION: Injury-prevention research has proven the effectiveness of exercise in preventing sports injuries in general and in the lower limb specifically. However, the results have been extrapolated to sport-related shoulder injuries from limited evidence. Similar reviews have been faced with insufficient high-quality evidence and limited studies due to restrictive target populations, resulting in reduced generalizability. INCLUSION CRITERIA: Peer-reviewed randomized controlled trials, with adequate control arms, investigating shoulder-injury events after exercise intervention in athletes, both training or competing in sports, will be included. Studies with substitute end points for injury events and non-self-propelled athletes, or vehicle-assisted athletes, will be excluded. METHODS: A comprehensive search of multiple databases will be used to find relevant studies. The databases will be searched from inception to April 2021, with no language restrictions imposed. Keywords and derivatives of "sport," "exercise intervention," "prevention," "shoulder injury," and "randomized controlled trials" will be used.Sources will include Academic Search Ultimate (EBSCO), CINAHL Plus (EBSCO), Cochrane Central Register of Controlled Trials (Wiley), MasterFILE Premier (EBSCO), MEDLINE (PubMed), Physiotherapy Evidence Database (PEDro), ProQuest Health and Medical Complete and Nursing and Allied Health Source (ProQuest Complete), ScienceDirect (Elsevier), Scopus (Elsevier), SPORTDiscus (EBSCO), and Web of Science (Clarivate Analytics). Data appraisal, extraction, and synthesis will follow JBI guidance for systematic reviews of effectiveness. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO CRD42020204141.
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MacMillan C, Olivier B, Benjamin-Damons N, 'Sport Science Lab(R) Screening Protocol: The association between physical fitness Parameters and injury among elite rugby players'
Physical Therapy in Sport 52 (2021) pp.272-279
ISSN: 1466-853XAbstractPublished hereCONTEXT AND OBJECTIVES: The Sport Science Lab(R) (SSL(R)) screening protocol includes novel methods of assessing flexibility, strength, plyometric ability and rugby specific fitness. The objective of this study was to investigate the association between these tests and injury among professional rugby players. DESIGN: Prospective cohort study. SETTING: Fitness facilities of participating teams. PARTICIPANTS: Thirty-nine injury-free, elite, adult (>18 years), male rugby players. MAIN OUTCOME MEASURES: The test battery consisted of eleven flexibility-, nine strength- and six plyometric tests and a rugby specific fitness test (RSFT). Injuries were recorded weekly during the 2019 rugby season. Associations between test results and injuries were analysed utilising suitable tests of association i.e., sensitivity, specificity, false positive rate, false negative rate, positive predictive value and negative predictive value and odds ratios (OR) (with confidence intervals (CI)). Bivariate correlations and logistic regression were performed to assess the relationship of the predictor variables to the outcome. RESULTS: Players who achieved the set standard for the RSFT (OR = 3.17; 95% CI = 0.79-12.75), triple horizontal broad jump (OR = 2.40; 95% CI = 0.86-19.61) and lateral depth jumps (OR = 2.40-3.44; 95% CI = 0.53-18.84) were two to three times less likely to sustain an injury during the season. CONCLUSION: Players with superior rugby specific fitness and cyclic linear- and lateral plyometric ability, may have a decreased risk of sustaining injuries.
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Koech K, Olivier B, Tawa N, 'A prevalence of running-related injuries among professional endurance runners in the Rift Valley, Kenya'
The South African Journal of Sports Medicine 33 (1) (2021)
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBackground: Injuries related to endurance running have attracted attention as the sport has become more competitive, and as athletes seek to improve their performance. Consequently, endurance runners are increasingly becoming more susceptible to lower extremity running injuries. Objectives: The aim of this study was to establish the prevalence of running-related injuries among professional endurance runners in the Rift Valley, Kenya.
Methods: We used a cross-sectional survey design targeting professional endurance runners who had participated in both local and international running competitions. The sample size consisted of 209 respondents selected through stratified and simple random sampling techniques, of which 167 participated in the study. A self-administered questionnaire was used to collect data on the prevalence of injuries among the endurance runners. The data were analysed using descriptive statistics.
Results: The prevalence of running injuries was 63% (n=106). The prevalence among males (n=64; 69%) was higher in comparison with that of females (n=42; 57%). The posterior thigh was the most common site for injuries among the athletes (n=87; 52%), followed by the lower back (n=78; 47%) and ankle (n=63; 38%).
Conclusion: The prevalence of running-related injuries was high among professional Kenyan endurance runners compared to other populations. These findings therefore form the basis of future research to explore the mechanisms behind the injuries and the feasibility of targeted injury prevention programmes.
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Olivier B, Jacobs L, Naidoo V, Pautz N, Smith R, Barnard-Ashton P, Ajidahun T, Myezwa H, 'Learning styles in Physiotherapy and Occupational Therapy students: an exploratory study'
South African Journal of Occupational Therapy 51 (2) (2021) pp.39-48
ISSN: 0038-2337 eISSN: 2310-3833AbstractPublished hereBACKGROUND: Learning styles of health care professionals are unique and tend to be profession- specific. This study aimed to compare the learning styles of undergraduate occupational therapy and physiotherapy students and to determine the relationship between preferred learning styles, demographic factors, and academic performance
METHOD: The study design was a cross-sectional, descriptive study. Undergraduate occupational therapy and physiotherapy students completed a self-developed questionnaire and the Grasha-Reichmann Learning Style Inventory
RESULTS: A total of 313 students with a mean age of 19.6±1.58 years participated in this study. The results showed that students preferred the collaborative (75%) learning style, with the first-year students scoring significantly higher in the collaborative style (3.97±0.48; p
CONCLUSION: The predominant preferred learning styles are the collaborative and participant styles. The application in the teaching space should be carefully considered for the selection of teaching approaches and activities. This study points to the Physiotherapy and Occupational Therapy programmes need to align to the collaborative style and respond with a variety of teaching methods. The associations shown between preferred learning styles and demographic variables point to the need to pay attention to diversity when selecting teaching approaches and activities -
Jacobs J, Olivier B, Dawood M, Panagodage Perera NK, 'Prevalence and incidence of injuries among female cricket players: a systematic review protocol'
JBI Evidence Synthesis 19 (8) (2021) pp.1977-1983
ISSN: 2689-8381 eISSN: 2689-8381AbstractPublished hereOBJECTIVE: The objective of this systematic review is to describe the incidence and prevalence of injuries in female cricket players participating in recreational-, school-, club-, and elite-level cricket. INTRODUCTION: Recent investments in women's cricket, stand-alone tournaments, and increased visibility through new broadcasting milestones has increased participation in many countries. With increased participation of women in cricket comes increased risk of injury. Epidemiological data are needed to underpin evidence-based injury-prevention strategies. No systematic review or meta-analysis of injuries is currently available to provide a comprehensive overview of synthesized findings to make the evidence accessible. INCLUSION CRITERIA: Studies on female cricket players of all ages and participating in all levels of cricket will be included. Studies that contain data on only male cricket players will be excluded. Studies where data from female cricket players can be distinguished from male players will be included. Injuries sustained when playing cricket, that are self-reported or diagnosed by a health care professional will be included. Definitions of injury including, but not limited to, medical-attention injuries, general time-loss injuries, or player-reported injuries will be considered. METHODS: MEDLINE, SPORTDiscus, Physiotherapy Evidence Database (PEDro), EBSCO MasterFILE Premier, EBSCO CINAHL Complete, ProQuest Health and Medical Complete, Scopus, and ScienceDirect will be systematically searched from inception to the present. Cochrane Central Register of Controlled Trials and ClincalTrials.gov will be searched as well as gray literature databases. Retrieval of full-text studies, assessment of methodological quality, and data extraction will be performed independently by two reviewers. If possible, meta-analyses will be performed. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO CRD42020166052.
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Mwololo TK, Olivier B, Karuguti WM, Matheri JM, 'Attitudes, perceptions and barriers around evidence-based practice in sports physiotherapy in Kenya'
South African Journal of Physiotherapy 77 (1) (2021)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: Healthcare practitioners are required to integrate clinical experience with the best research evidence for the benefit of the patient. Objective: Determine the attitudes, perceptions and barriers regarding evidence-based practice (EBP) in sports physiotherapy in Kenya. Method: A quantitative crosssectional study was conducted among licensed physiotherapists in the Republic of Kenya through a self-administered questionnaire. Associations between selected sociodemographic characteristics (gender, age, training, experience, specialisation) and attitudes, perceptions and barriers were determined using a Chi-square test. Results: A 55.9% (n = 391) response rate was recorded. A positive attitude towards EBP was reported by 94.6% (n = 370) of the respondents. The most obvious areas of agreement with attitude-and perception-related statements were that 'EBP is important in that patients can receive the best possible treatment' (95.9%; n = 375), and that it is important that 'evidence-based guidelines related to work exist' (84.6%; n = 331). There were no significant associations between the demographic characteristics (gender p = 0.104 [X (2) = 2.638;1]; age p = 0.495 [X (2) = 2.393;3]; training p = 0.590 [X (2) = 4.644;6]; experience p = 0.980 [X (2) = 0.426;4] and specialisation p = 0.649 [X (2)= 0.207;1]); and attitudes and perceptions regarding EBP. Insufficient time was highlighted by 57.8% (n = 226) of the respondents as one of the 'most important barriers'. Conclusion: Although physiotherapists presented with strong positive attitudes towards EBP in sports physiotherapy, barriers were identified which could hinder the implementation of EBP in sports physiotherapy. Clinical implications: Barriers to applying EBP in sports physiotherapy may lead to inferior quality of care for athletes while addressing these barriers is crucial.Published here -
Garnett D, Bholah A, Olivier B, Patricios J, D’Hotman Y, Sunassee K, Cobbing S, 'The epidemiology of injury and illness amongst athletes at the Indian Ocean Island Games, Mauritius, 2019'
The South African Journal of Sports Medicine 33 (1) (2021)
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBackground: The Indian Ocean Island Games is a multi-sport event that occurs every four years and includes athletes from seven islands of the Indian Ocean.
Objective: This study aims to describe the injury and illness epidemiology of the athletes participating during the 2019 Indian Ocean Islands Games.
Material and Methods: This prospective cohort study recorded injury and illness cases from athletes who competed in these Games. All medical physicians received detailed instructions and training on data collection using an injury report form. All athletes (minor and adults) who provided consent, or consent given from the minors’ guardians, were included in this study. Athletes who did not provide consent for this study were excluded.
Results: 1 521 athletes (531 women and 990 men) reported 12 injuries per 100 athletes (n=160) and 6 illnesses per 100 athletes (n=85). The percentage of distribution of injuries were highest in football and basketball. Most injuries occurred during competition compared with training Joint sprains were the most common type of injury (28%), followed by muscle strains (19%). Men suffered the majority of injuries (79% vs. 21%). Similarly, men sustained more illness than women (57% vs. 43%). Most illnesses affected the respiratory system (67%), and infection was the most common cause of illness (84%) in participating athletes.
Discussion: These findings are similar to previous events in other parts of the world. However, unique ailments, not previously reported on, were discovered.
Conclusion: Epidemiological data from this study can be inferred to athletes who compete in similar multi-sport events and/or Olympic Games in the Indian Ocean region.
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Bakare U, Olivier B, Brandt C, Godlwana L, 'Injury prevention knowledge, beliefs, and practices among women’s football teams in South Africa'
The South African Journal of Sports Medicine 33 (1) (2021) pp.1-6
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBackground: Numerous factors account for injury prevention or lack thereof in any team setting. With the increasing burden of injuries in women’s football, and limited human resources accessible in sub-Saharan Africa, it is important to investigate the ways in which standardised injury prevention practices can be achieved.
Objectives: The study aimed to evaluate injury prevention knowledge, beliefs, and practices in women’s football teams in the University Sport South Africa (USSA) Football League in Gauteng Province, South Africa.
Methods: A cross-sectional self-administered survey was conducted among women’s football teams registered to participate in the USSA Football League in South Africa’s Gauteng Province.
Results: A total of 107 respondents participated in the study, which included both players (n=98; 92%) and their support staff (n=9; 9%). The median (interquartile range) age of the participants was 22 (20-25) years. In the population sampled, 36% of the participants perceived that they had adequate knowledge of injury prevention practices in football, while others felt they had limited knowledge of the basic injury prevention programmes (IPPs). The results also indicated that the injury prevention practices of coaches (93%) and their beliefs in this regard (70%) are sufficient for achieving the basic injury prevention goals. Most of the respondents (89%) indicated that a medical support system is important in attaining the goals of injury prevention.
Conclusion: Members of women’s teams in the USSA Football League have recognised limited knowledge about the basic IPPs, while they do employ some of the basic injury prevention practices in football. These practices could be influenced by the beliefs of the coaches and the players, and most of them believe that IPPs are important. It is essential as key stakeholders that coaches' and players' education and knowledge of injury prevention strategies should be considered as an integral part of the process to succeed. It should be strongly highlighted and implemented, thus augmenting the credibility, trust and compliance for IPPs in the sport.
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Munala JM, Olivier B, 'Work-related risk associated with musculoskeletal disorders amongst flower farm workers in Kenya'
International Journal of Physiotherapy and Research 9 (3) (2021) pp.3817-3824
ISSN: 2321-8975 eISSN: 2321-1822AbstractPublished hereBackground: Work-related musculoskeletal disorders (WRMSDs) are a public concern to social-care and health systems, as well as individuals. Globally, WRMSDs are classified as one of the prevalent causes of disability.
Objectives: The primary objective of this study was to determine work-related risk associated with musculoskeletal disorders amongst flower farm workers. The secondary objective was to determine the relationship between WRMSD risk over the previous 12 months and socio-demographic characteristics.
Method: A cross-sectional descriptive study was conducted. A sample of 270 participants was drawn from 897 farm workers, of which 184 presented with WRMSD as assessed using the Nordic Musculoskeletal Questionnaire. Quantitative data were collected using the Rapid Entire Body Assessment questionnaire. Inferential statistics were analyzed using the Pearson’s chi-squared test (X2) test and based on an alpha level of p
Results: Respondents who reported medium risk were 49 (26.6%), 80 (43.5%) reported high risk while 55 (29.9%) reported very high risk. There was no relationship between WRMSD risk and socio-demographic characteristics.
Conclusions: Flower farm workers in Kenya were found to be at risk of sustaining WRMSDs although socio-demographic factors did not play a role in the level of risk.
Clinical Implications: The high prevalence of WRMSDs necessitates policy reform in the flower farm industry. Furthermore, the timely identification of potential disorders and the associated risk factors is necessary to ensure early intervention.
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Lopes T, Goble D, Olivier B, Kerr S, 'Novel Twenty20 batting simulations: a strategy for research and improved practice'
F1000Research 10 (2021)
ISSN: 2046-1402 eISSN: 2046-1402AbstractPublished hereTwenty20 cricket and batting in particular have remained vastly understudied to date. To elucidate the effects of batting on the batter, tools which replicate match play in controlled environments are essential. This study describes the development of two Twenty20 batting simulations, for a high and low strike rate innings, generated from retrospective analysis of international and domestic competition. Per delivery analysis of probabilities of run-type and on/off-strike denomination produce ball-by-ball simulations most congruent with retrospective competitive innings. Furthermore, both simulations are matched for duration and dictated through audio files. The `high' strike rate innings requires a batter to score 88 runs from 51 deliveries, whereby 60 runs are from boundaries. Similarly, the `low' strike rate innings requires a batter to score 61 runs from 51 deliveries, where 27 runs are scored from boundaries. Because batting simulations dictate run scoring outcomes, a method of quantifying a batter's performance from bat-ball contact scores is described. Ten elite batters achieved a mean performance score of 72 (SD = 26) and 88 (21) for the low and high strike rate simulations respectively. This study provides sport practitioners with a training technique to improve specific skill acquisition and enables research in understudied Twenty20 batting.
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MacMillan C, Olivier B, Benjamin-Damons N, 'The interrater and intrarater reliability of the flexibility and strength tests included in the Sport Science Lab((R)) screening protocol amongst professional rugby players'
South African Journal of Physiotherapy 77 (1) (2021)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereBackground: Considering the injury incidence rate (IR) associated with elite-level rugby, measures to reduce players' injury risk are important. Establishing scientifically sound, pre-season musculoskeletal screening protocols forms part of injury prevention strategies. Objective: To determine the interrater and intrarater reliability of the flexibility and strength tests included in the Sport Science Lab((R)) (SSL) screening protocol. Methods: We determine the interrater and intrarater reliability of 11 flexibility and nine strength tests. Twenty-four injury-free, elite, adult (> 18 years), male rugby players were screened by two raters on two occasions. To establish intrarater and interrater reliability, Gwet's AC1, AC2 and intraclass correlation coefficients (ICC) were used for the analysis of binary, ordinal and continuous variables, respectively. Statistical significance was set at 95%. Results: Flexibility tests which require lineal measurement had at least substantial interrater (ICC = 0.70-0.96) and intrarater reliability (ICC = 0.89-0.97). Most of the flexibility tests with binary outcomes attained almost perfect interrater and intrarater reliability (Gwet's AC1 = 0.8-0.97). All strength tests attained at least substantial interrater (Gwet's AC2 = 0.73-0.96) and intrarater (Gwet's AC2 = 0.67-0.97) reliability. Conclusion: The level of interrater and intrarater reliability of most of the flexibility and strength tests investigated supports their use to quantify various aspects of neuromusculoskeletal qualities and possible intrinsic risk factors amongst elite rugby players. Clinical implications: Establishing the reliability of tests, is one step to support the inclusion thereof in official screening protocols. Results of our study, verify the reliability of the simple, clinically friendly strength and flexibility tests included and therefore support their use as preparticipation screening tools for rugby players. Further investigation as to the association thereof to athletes' injury risk and performance is warranted.
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Munala JM, Olivier B, Karuguti WM, Karanja SM, 'Prevalence of musculoskeletal disorders amongst flower farm workers in Kenya'
South African Journal of Physiotherapy 77 (1) (2021)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: Work-related musculoskeletal disorders (WMSDs) are a global public concern for health and social-care systems, as well as individuals. They are the second-most prevalent cause of disability globally. Objectives: The primary objective was to determine the prevalence of WMSDs amongst flower farm workers. The secondary objective was to determine the association between the socio-demographic characteristics and the presence of WMSDs in the previous 12-month period. Method: A cross-sectional descriptive study was conducted. A sample of 270 participants was drawn from 897 farm workers. Quantitative data related to musculoskeletal disorders were collected using the Nordic Musculoskeletal Questionnaire (NMQ). Descriptive statistics were undertaken using frequencies and percentages. Inferential statistics were analysed using a chi-squared test (X(2)) based on an alpha level of p < 0.05. Results: A total of 184 (68.1%) respondents reported musculoskeletal discomfort. Amongst the 184 respondents, 178 were performing general farm work. Most 103 (38.1%) of the WMSDs were reported in the lower back. There was a strong association between job designation as a general worker (p = 0.016), an older age (p = 0.027) and having worked for a long time as a farm worker (p = 0.041) and WMSDs. Conclusion: Flower farm workers in Kenya were found to be heavily burdened by WMSDs. Furthermore, the job designation, older age, as well as having worked for a long time, predisposes workers to the risk of developing WMSDs. Clinical implications: The high prevalence of WMSDs necessitates policy reform in the flower farm industry.Published here -
Mnguni N, Olivier B, Mosselson J, Mudzi W, 'Prevalence of concurrent headache and temporomandibular disorders: a systematic review protocol'
JBI Evidence Synthesis 19 (1) (2021) pp.263-269
ISSN: 2689-8381 eISSN: 2689-8381AbstractPublished hereOBJECTIVE: The objective of this review is to determine the concurrent prevalence of temporomandibular disorders and headaches in patients. INTRODUCTION: Temporomandibular disorders affect the temporomandibular joint and associated orofacial structures. It is the second-most common musculoskeletal disorder experienced by adults. Headache is one of the most pervasive neurological disorders and can be an extremely disabling condition. Temporomandibular disorders and headache are known to often occur simultaneously and have a bi-directional relationship due to their close anatomical association. INCLUSION CRITERIA: The systematic review will include all studies with adult participants (>18 years) experiencing headaches (migraine, migraine with/without aura, tension-type, cervicogenic, and chronic headache) with symptoms of temporomandibular disorders occurring concurrently. METHODS: An initial search of PubMed will be followed by CINAHL, the Cochrane Central Register of Controlled Trials in the Cochrane Library, EBSCO MasterFILE Premier, PEDro, ProQuest Health and Medical Complete, Science Direct, and Scopus. Titles and abstracts of studies will be reviewed, and full text articles will be selected if the inclusion criteria are met. Studies that meet the eligibility criteria will then be assessed by two independent reviewers. Full-text articles will be selected if the inclusion criteria are met. A standardized critical appraisal checklist for studies reporting prevalence data will be used to assess methodological quality and a standardized data extraction tool will be used. The results from the included studies will be analyzed using JBI SUMARI software. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO (CRD42019139689).
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Redivo VS, Olivier B, 'Time to re-think our strategy with musculoskeletal disorders and workstation ergonomics'
South African Journal of Physiotherapy 77 (1) (2021)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: The dramatic increase in visual display units (VDU) in the workplace over a 20-year period is linked to the increased prevalence of musculoskeletal disorders (MSDs). Objectives: The objective of our study was to compare ergonomic risk factors and work-related psychosocial factors in VDU users with and without MSD. Methods: Participants, with and without MSD, working with VDU for more than 4 h a day completed the Nordic Musculoskeletal Questionnaire and the Effort-Reward Imbalance Model and Over-commitment Questionnaire. The workstation of each participant was assessed for ergonomic risk factors using the Rapid Office Strain Assessment (ROSA). Results: Sixty-eight VDU users with and 68 without MSDs participated. The workstation ergonomic risk factors as measured with the ROSA were similar for the two groups: 4.5 +/- 1.0 for the MSD group and 4.3 +/- 0.8 for the reference group (p = 0.10). The work-related psychosocial factors, namely over-commitment, were higher in the MSD group (14.9 +/- 3.1) than in the reference group (13.8 +/- 3.4; p = 0.041). Conclusions: As over-commitment is an indication of intrinsic factors and personal characteristics, the significant difference between the MSD group's over-commitment score and that of the reference group suggests that interventions to empower individuals are needed. Clinical implications: Physiotherapists should only adjust ergonomic workstation risk factors when established as contributory to MSD, and should be cognisant of work-related or individual psychosocial factors that may impact the patient with MSD. The use of ergonomic advice to patients with MSD should be performed with caution, taking all the work place risk factors for MSD into account.Published here -
Huysamen C, Olivier B, Naidoo V, Stewart A, 'Ability of Physiotherapists and Physiotherapy Students to Evaluate and Classify Lumbar Movement Control Using Lumbopelvic Movement Control Tests'
Physiotherapy Canada 73 (3) (2021) pp.257-267
ISSN: 0300-0508 eISSN: 1708-8313AbstractPublished herePurpose: The aims of our study were to (1) describe the tests that physiotherapists use to assess lumbopelvic movement control and (2) compare physiotherapists’ and physiotherapy students’ ability to evaluate lumbar movement dysfunction in patients with non-specific low back pain (NSLBP). Method: A quantitative, observational, cross-sectional study design was used. A total of 93 qualified physiotherapists and 96 students participated in our study. The physiotherapists reported whether they were familiar with lumbopelvic movement control tests and indicated which tests they used to assess lumbopelvic movement control (Part 1). Both the physiotherapists and the students evaluated and classified lumbopelvic movement control while observing videos of patients with NSLBP (Part 2). The responses from physiotherapists and students were described and compared between the two groups using the Fisher exact test (p ≤ 0.05). Odds ratios were calculated in terms of years of experience and level of education. Results: A total of 80 physiotherapists (86%) were familiar with lumbopelvic movement control tests, but only a few were using those tests as part of the assessment of patients; 12 (13%) used waiter’s bow; 16 (17%) used rocking forward; 17 (18%) used rocking backward; 32 (34%) used sitting knee extension; 34 (37%) used prone knee flexion; and 70 (75%) used posterior pelvic tilt. The physiotherapy students and qualified physiotherapists generally agreed on the ratings of most of the videos (e.g., as correct or incorrect). A difference was found in only 3 of 24 videos for both the qualified physiotherapists and the physiotherapy students (p = 0.001, p = 0.007, and p = 0.033, respectively), which indicates that qualified physiotherapists and students agreed and classified 21 videos the same. No differences were found in the ability of physiotherapists (regardless of experience) or students to classify patients as presenting with either a flexion or an extension pattern. Conclusions: The majority of physiotherapists were familiar with lumbopelvic movement control tests, but only a few used them. Both the physiotherapists and the students were able to classify patients with NSLBP presenting with either a flexion or an extension pattern. =
Objectif : 1) décrire les tests qu’utilisent les physiothérapeutes pour évaluer le contrôle des mouvements lombo-pelviens et 2) comparer la capacité des physiothérapeutes et celle des étudiants en physiothérapie à évaluer la dysfonction des mouvements lombaires chez les patients ayant des douleurs lombaires non spécifiques (DLNS). Méthodologie : étude d’observation transversale quantitative auprès de 93 physiothérapeutes qualifiés et de 96 étudiants. Les physiothérapeutes ont indiqué s’ils connaissaient les tests de contrôle des mouvements lombo-pelviens et quels tests ils utilisaient pour évaluer ces mouvements (partie un). Tant les physiothérapeutes que les étudiants ont évalué et classé le contrôle des mouvements lombo-pelviens à partir de vidéos de patients ayant des DLNS (partie deux). Les chercheurs ont décrit et comparé les réponses des physiothérapeutes et des étudiants au moyen du test exact de Fisher (p ≤ 0,05). Ils ont calculé les rapports de cote d’après les années d’expérience et le niveau d’instruction. Résultats : au total, 80 physiothérapeutes (86 %) connaissaient les tests de contrôle des mouvements lombo-pelviens, mais seuls quelques-uns les utilisaient dans leur évaluation des patients. Ainsi, 12 (13 %) utilisaient la courbette du serveur; 16 (17 %), le balancement vers l’avant; 17 (18 %), le balancement vers l’arrière; 32 (34 %), l’extension du genou en position assise; 34 (37 %), la flexion du genou en position couchée; et 70 (75 %), la bascule postérieure du bassin. Les étudiants en physiothérapie et les physiothérapeutes qualifiés s’entendaient généralement sur la classification de la plupart des vidéos (correct ou incorrect). Ils sont parvenus à des résultats différents à l’égard de seulement trois des 24 vidéos (p = 0,001, p = 0,007 and p = 0,033, respectivement). Ainsi, les physiothérapeutes et les étudiants ont classé 21 vidéos de la même façon. Les physiothérapeutes (quelle que soit leur expérience) et les étudiants n’ont pas démontré de différence quant à leur capacité de classer les patients qui présentaient un profil de flexion ou d’extension. Conclusion : la majorité des physiothérapeutes connaissait les tests de contrôle des mouvements lombo-pelviens, mais seuls quelques-uns les utilisaient. Tant les physiothérapeutes que les étudiants étaient en mesure de classer les patients ayant des DLNS dans un profil de flexion ou d’extension.
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Briel S, Olivier B, Mudzi W, 'An electromyographic and kinematic study of the scapular stabilisers'
South African Journal of Physiotherapy 76 (1) (2020)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: The scapular stabilisers, especially the actions of the force couples around the scapula, have an impact on the biomechanics of the scapula and the orientation of the glenoid. Objectives: The aim of our study was to determine both the muscle activity and the correlation between the muscle activity ratio of the lower force couple (the serratus anterior lower fibres and the lower trapezius). Methods: This was a quantitative cross-sectional study. Muscle activity of the dominant serratus anterior lower fibres and the lower trapezius muscles was collected with surface electromyographic (EMG) sensors and an inertial motion capture system was used to measure the three-dimensional (3D) shoulder flexion in the sagittal plane and abduction in the frontal plane. Graph Pad 5 (Prism, San Diego, CA, USA) was used for the statistical analysis. The confidence level was set at 95% (p < 0.05). Results: Sixteen men and women participated in our study, with a mean (standard deviation) age of 25.4 (+/- 4.6) years, weight of 80.2 (+/- 25.1) kg and height of 171.6 (+/- 10.3) cm. A strong negative correlation was found at the start of the abduction (r = -0.623; p = 0.01) between the muscle activity of the serratus anterior lower fibres and the lower trapezius. Conclusions: The only significant increase in the mean EMG ratio of serratus anterior lower fibres versus the lower trapezius was present at 60% (from baseline) of abduction (p = 0.03). Clinical implications: The EMG activity ratio of serratus anterior lower fibres and lower trapezius remains variable in different movement planes.Published here -
Olivier B, Lala B, Gillion N, 'The cricketer's shoulder and injury: Asymmetries in range of movement and muscle length'
South African Journal of Physiotherapy 76 (1) (2020)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: Shoulder injuries in cricket are often undetected and untreated. Objectives: To determine whether there are associations between shoulder internal and external rotation range of movement (ROM), throwing arc (TA) ROM, glenohumeral internal rotation deficit (GIRD), external rotation gain (ERG), pectoralis minor muscle length and the incidence of shoulder injury during the first 3 months of a cricket season amongst provincial and club cricketers. Method: Male, actively participating, provincial and club cricketers were included in this prospective longitudinal cohort study. The independent variables included shoulder pain, which did not limit participation in cricket training and matches; shoulder external and internal rotation (ROM, TA ROM, GIRD and ERG) and pectoralis minor muscle length. Time-loss dominant shoulder injury was recorded for 3 months. Results: Nine of the 32 participants sustained dominant shoulder injuries. Initial non-time-loss shoulder pain during baseline testing was associated with time-loss in-season shoulder injury (p = 0.007). Statistically significant side-to-side differences were found for all of the independent variables (internal rotation ROM, TA ROM and pectoralis minor muscle length distance), with the exception of external rotation ROM, amongst the uninjured players. Conclusion: Non-time-loss-defined shoulder pain in actively participating cricketers seems to be a precursor to time-loss shoulder injury. Asymmetries in ROM and pectoralis minor muscle length in uninjured cricketers may have a protective role to play in the case of shoulder injury. Clinical implications: The presence of shoulder pain and asymmetries in ROM should be investigated during the pre-season screening procedures, and early intervention should be implemented where appropriate.Published here -
Martin C, Olivier B, Benjamin N, 'Association between physical fitness parameters and risk of in-season injury among adult male rugby players: a systematic review protocol'
JBI Evidence Synthesis 18 (7) (2020) pp.1580-1586
ISSN: 2689-8381 eISSN: 2689-8381AbstractPublished hereOBJECTIVE: The objective of this review is to assess whether pre-season physical fitness parameters are associated with in-season injury risk among adult male rugby players. INTRODUCTION: Pre-season neuromusculoskeletal screening protocols (which include tests related to different physical fitness parameters) are injury prevention strategies employed to manage athletes' in-season injury risk. A systematic review exploring the association between in-season injury and specific physical fitness parameters may justify the inclusion or exclusion of these tests in official screening protocols. INCLUSION CRITERIA: This review will consider prospective, observational cohort studies that investigate injury-free adult (aged 18 years or above) male rugby players, from all levels of participation (recreational, sub-elite and elite). Studies investigating physical fitness parameters and their association to rugby-related neuromusculoskeletal injury will be included. METHODS: The proposed systematic review will be conducted in accordance with the JBI methodology for systematic reviews of etiology and risk. Published and unpublished studies will be sourced from several databases and resources. Two independent researchers will screen, appraise and extract data from studies meeting the inclusion criteria using standardized critical appraisal and data extraction tools. Data synthesis will be conducted and a Summary of Findings constructed to summarize data and draw conclusions. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO 130240.
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Shead D, Roos R, Olivier B, Ihunwo A, 'Curricular and pedagogical aspects of gross anatomy education for undergraduate physiotherapy students: A scoping review'
JBI Evidence Synthesis 18 (5) (2020) pp.893-951
ISSN: 2689-8381 eISSN: 2689-8381AbstractPublished hereObjective:
The objective of this review was to collate and map gross anatomy curricular and pedagogical approaches for physiotherapy students.
Introduction:
Knowledge of anatomy is essential for physiotherapy clinical diagnosis, treatment effectiveness and safe practice. The information on this topic is sparse, and what does exist is diverse. This scoping review describes anatomy educational approaches for physiotherapy students and provides needed insight into this topic.
Inclusion criteria:
No limits were applied on the date of the database search or age of participants. Languages were limited to English, French, German and Spanish. Studies had to include information on gross anatomy curricula or pedagogy for physiotherapy students, or information from qualified physiotherapists or those teaching gross anatomy to physiotherapy students.
Methods:
Included studies were mainly sourced from EBSCOhost (CINAHL, ERIC and MEDLINE), PubMed and Scopus databases. Perusal of reference lists facilitated further retrievals. Studies published from inception up to 21 July 2019 were included. Studies were identified and screened, and the process was reported in a PRISMA flow diagram. JBI methodology for scoping reviews was followed. Selected studies were charted according to a template created and published in a JBI scoping review protocol.
Results:
Fifty-four studies satisfied the inclusion criteria. Various studies gave calculable length of intervention in weeks (n=14, 26%), hours (n = 7, 13%) or both (n = 21, 39%). The majority of studies (n = 50, 93%) were cross-sectional studies; three were randomized controlled trials (6%). Mean sample sizes varied from 55.3 ± 30.4 (professional behaviors, ethical and humanistic aspects) to 323.2 ± 219.7 participants (multi-modal and blended learning). Overall, 29 studies (54%) included physiotherapy students or personnel in physiotherapy anatomy programs exclusively in the sample. Other disciplines with physiotherapy students included medical students (n = 12, 22%), and occupational therapy students (n = 10, 19%). The interprofessional education category (n = 8) determined that interdisciplinary teamwork led to increased anatomical learning and awareness of future clinical roles. Computer-assisted learning (n = 9) was effective as a stand-alone or adjunct pedagogy, useful for self-study and helped anatomical knowledge retention. Team-based learning (n = 2), peer teaching (n = 6) and clinical input incorporating case-based learning and horizontal and vertical integration (n = 4) resulted in anatomical knowledge retention and were associated with mastery of anatomical understanding, an increase in examination confidence and higher examination grades. Contradictory learning outcomes resulted from the use of online videos in blended and multi-model learning studies (n = 7). Increased student participation in asynchronous online discussion forums benefitted academic learning outcomes. The category of curriculum, pedagogy and materials (n = 15) identified and compared different survey results pertaining to the curricular aspect of the objectives of this review. One study investigated the flipped classroom concept. The use of anatomy content to encourage professional, ethical and humanistic aspects (n = 3) of physiotherapy students’ behavior resulted in positive outcomes.
Conclusions:
This scoping review revealed a multi-faceted topic with many types of interventions and outcomes recorded. It identified variations in pedagogies, curricular content and learning approaches integral to the subject and their impact on gross anatomy education for this population. Beneficial behavioral, anatomical learning, knowledge retention and academic outcomes were identified.
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Olivier B, Verdonck M, Caseleijn D, 'Digital technologies in undergraduate and postgraduate education in occupational therapy and physiotherapy: a scoping review'
JBI Evidence Synthesis 18 (5) (2020) pp.863-892
ISSN: 2689-8381 eISSN: 2689-8381AbstractOBJECTIVE: The objective of this scoping review was to map research in the use of digital technologies in occupational therapy and physiotherapy education in terms of the type of digital technology used, how the digital technology is applied, and the author-reported outcomes of digital technology use. INTRODUCTION: The ubiquitous nature of digital technology has influenced higher education, offering benefits of integrating digital technologies into curricula. However, the extent of the application of digital technologies in higher education in occupational therapy and physiotherapy warrants investigation. This scoping review mapped the reported applications of digital technology in both undergraduate and postgraduate occupational therapy and physiotherapy education. INCLUSION CRITERIA: Research studies on the use of digital technology in undergraduate and/or postgraduate education in occupational therapy and/or physiotherapy were considered for inclusion in this scoping review. METHODS: A comprehensive search strategy using multiple databases was employed to find relevant studies. Keywords and the derivatives of "digital technology," "education," "occupational therapy" and "physiotherapy" were used. The databases searched included MEDLINE via PubMed, the Cochrane Central Register of Controlled Trials, Physiotherapy Evidence Database (PEDro), EBSCOhost Education Research Complete, EBSCOhost ERIC, EBSCOhost MasterFILE Premier, EBSCOhost CINAHL Complete, OT Database, OT Seeker and Scopus. Google Scholar was also searched. The filter "humans" was applied, where possible. Peer-reviewed qualitative and quantitative research studies were considered for inclusion. Owing to the rapid development of technologies, studies that were published from January 2013 to April 2019 were included. This review only included papers available in English. The relevant studies and their reported outcomes were organized and analyzed thematically. RESULTS: The initial search yielded 2853 articles. Title, abstract and full-text review yielded 52 suitable papers meeting criteria. The final data set represented 4038 participants. Data were analyzed according to three main categories, namely, type of technology used, application of digital technology and author-reported outcomes. The review showed that occupational therapy and physiotherapy educators have used a wide variety of digital technologies, including quizzes, videos, social media, learning management systems and content repositories. Digital technologies have been applied in a range of learning and teaching contexts, including feedback and assessment, clinical skills and techniques, professional behaviors, clinical reasoning and fieldwork supervision. Author-reported outcomes varied between studies and were associated with student factors (e.g. anxiety, self-efficacy), technical difficulties when implementing digital technology, as well as financial costs. CONCLUSION: A wide variety of digital technologies can support learning and teaching across many contexts in occupational therapy and physiotherapy education. Technology should not be used in isolation and must be aligned to the proposed learning outcomes. Studies highlight the need for face-to-face contact with lecturers and fellow students in addition to the use of digital technology.Published here -
Mwololo TK, Olivier B, Karuguti W, 'Knowledge and Adherence Towards Evidence-Based Sports Physiotherapy Standards Among Physiotherapists in Kenya'
International Journal of Physiotherapy and Research 8 (6) (2020) pp.3663-3673
ISSN: 2321-8975 eISSN: 2321-1822AbstractPublished hereBackground: Evidence-based practice (EBP) and evidence-based physiotherapy (EBPT) have been investigated in different physiotherapy clinical settings. However, there has been no research into knowledge and adherence in respect of evidence-based sports physiotherapy standards in Kenya.
Objective: To determine the levels of knowledge and adherence towards EB sports physiotherapy standards among physiotherapists in Kenya.
Method: A cross-sectional study using quantitative methods and in conjunction with a self-administered questionnaire was conducted in a population of 700 physiotherapists.
Results: The response rate was (n=391; 55.9%). Involvement in structured sports physiotherapy practice accounted for (n=129; 32.9%). High levels of EBP knowledge (n=265; 67.8%) were reported. More males (n=185; 73.4%) than females (n=80; 57.5%) presented with high levels of EBP knowledge. Those with specializations (n=65; 83.3%) demonstrated higher levels of EBP knowledge than those without (n=200; 63.9%). Adherence to EBP process steps accounted for (n=143; 36.6%) of the population. More males (n=104; 41.3%) than females (n=39; 28.1%) adhered to the EBP process. Those with specializations (n=48; 61.5%) and those without (n=95; 30.4 %) adhered to the EBP process. Gender, training and specialization were found to have statistically-significant associations with knowledge and adherence (p
Conclusion: Physiotherapists in Kenya present with high levels of knowledge in EB sports physiotherapy but with lower levels of adherence to the EBP process.
Clinical implications: Limited adherence to EBP standards despite high levels of knowledge points to an inferior quality of care for athletes with sports physiotherapy needs. Attention to the limiting factors to adherence may improve the quality of care.
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Ravat S, Olivier B, Gillion N, Theron F, 'Laterality judgment performance between people with chronic pain and pain-free individuals. A systematic review and meta-analysis'
Physiotherapy Theory and Practice: An International Journal of Physical Therapy 36 (12) (2019) pp.1279-1299
ISSN: 0959-3985 eISSN: 1532-5040AbstractPublished hereBackground: Treatment of chronic pain is challenging and there is often failure of recovery, with the need to look at different approaches in its management. Central mechanisms may contribute to chronicity (i.e. disturbance in body schema). Laterality judgment is dependent on body schema and can determine affected central mechanisms. Objective: This review aimed to determine whether there are laterality judgment differences between chronic pain and pain-free individuals. Methods: A search was done of various databases, using combinations of keywords, and reference lists of full-text articles. Articles were considered from inception until February 2018. Eighteen studies were included. Methodological quality was assessed by two reviewers using the JBI Critical Appraisal Checklist. Studies were analyzed broadly then divided into subgroups. A meta-analysis or narrative review was done. Results: There was high heterogeneity for broad outcome measures, complex regional pain syndrome (CRPS1), and upper limb pain. Analysis for accuracy in lower limb conditions showed a medium significant effect size (0.59) and significant 95%CI (0.11–1.07). Low back and cervical pain results could not be pooled into meta-analysis (due to different methods of reporting). Conclusions: Laterality judgment impairment was shown in CPRS1, upper limb pain, hand and wrist pain, carpal-tunnel syndrome, facial pain, knee osteoarthritis, and leg pain. No conclusions could be drawn in low back pain, due to the low-quality evidence and differing results. There was no impairment in whiplash-associated disorders and nonspecific cervical pain showed conflicting evidence.
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Basson CA, Olivier B, Rushton A, 'Neck pain in South Africa: An overview of the prevalence, assessment and management for the contemporary clinician'
South African Journal of Physiotherapy 75 (1) (2019)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: Neck pain is a prevalent condition and is associated with high levels of disability and pain. The long-term prognosis can be poor, and therefore effective management in the acute stage is important. Objectives: To provide an overview of the prevalence of neck pain and physiotherapy management and to provide evidence-informed recommendations for clinical practice within a South African context. Method: The literature was reviewed considering prevalence, risk factors and examination. Management recommendations were derived from the highest levels of evidence of clinical practice guidelines, systematic reviews and randomised clinical trials. Results: Neck pain is classified into four grades, and three trajectories of recovery have been identified. Although the incidence of neck pain globally is high, in the South African context the majority of the population have limited access to physiotherapy management. Sound clinical reasoning is important in the assessment and decision-making process for management. Exercise, and mobilisation or manipulation are effective treatment options in the management of most types of neck pain. Other physical modalities such as needling, transcutaneous electrical nerve stimulation, laser and intermittent traction may be used as an adjunct to management. Conclusion: The burden of neck pain globally is high; however, there is a lack of information on current practice, prevalence and burden of neck pain in the South African context. Sound evidence-informed clinical reasoning to inform a working diagnosis and to enable patient-centred management is important. Clinical implications: A thorough assessment is essential to gather information to formulate hypotheses regarding diagnosis and prognosis for neck pain. Exercise, and mobilisation or manipulation are effective management options.Published here -
Mukoka G, Olivier B, Ravat S, 'Level of knowledge, attitudes and beliefs towards patients with chronic low back pain among final year School of Therapeutic Sciences students at the University of the Witwatersrand - A cross-sectional study'
South African Journal of Physiotherapy 75 (1) (2019)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereBackground: Knowledge of neurophysiology of pain influences healthcare providers’ attitudes and beliefs about patients with chronic low back pain which affect management choices.
Objectives: The aim of this study was to determine the level of knowledge of pain and attitudes and beliefs towards patients with chronic low back pain among final year undergraduate students from the School of Therapeutic Sciences at the University of the Witwatersrand.
Methods: This cross-sectional study included two questionnaires – Health Care Providers’ Pain and Impairment Relationship Scale (HC-PAIRS) for measuring attitudes and beliefs about pain and the Neurophysiology of Pain Questionnaire (NPQ) for knowledge of pain. These were distributed to 224 students. An analysis of variance and a two-sided t tests compared data with p ≤ 0.05.
Results: The study had a 65% response rate (n = 145), of which the majority were female students (n = 115, 79%). Overall, the mean correct NPQ score was 6.01 (± 1.98), with a significant difference among the programmes (p = 0.005). Mean NPQ scores for each programme were as follows: physiotherapy 6.97 (1.77), biokinetics 6.31 (2.43), exercise science 6.25 (2.5), pharmacy and pharmacology 5.69 (1.39), nursing 5.32 (1.39) and occupation therapy 5.21 (2.09). The mean correct scores for HC-PAIRS were 63.1 (8.9), with significantly higher scores in females than males (p = 0.04). Knowledge scores had a low inverse relationship with scores for attitudes and beliefs towards patients with chronic low back pain (r = -0.304; p = 0.0002).
Conclusion: There is a deficit in knowledge of pain among final year students in the School of Therapeutic Sciences, with a low correlation with attitudes and beliefs towards patients with chronic low back pain. Therefore, improving the knowledge of pain might result in a change in these attitudes and beliefs.
Clinical implications: The results have shown an association between knowledge of pain and attitudes and beliefs towards patients with chronic low back pain. Therefore, knowledge is one of the factors that could contribute in changing the attitudes.
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Shead D, Roos R, Olivier B, Ihunwo AO, 'Opinions of South African physiotherapists on gross anatomy education for physiotherapy students'
South African Journal of Physiotherapy 75 (1) (2019)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: Physiotherapists know the depth of gross anatomical knowledge required for safe and effective clinical practice. They can offer insightful opinions on inclusions for and teaching of an anatomy curriculum for physiotherapy students. Objectives: The aim of this study was to gather opinions of physiotherapists as to what they perceive as necessary anatomy curricular content for undergraduate physiotherapy students and identify pedagogy that should be used. Method: A qualitative methodology using a grounded theory approach incorporating semi-structured interviews was utilised in this study. Theoretical sampling was used to identify representative South African physiotherapists. An inductive process, using continuous manual analysis of data by two independent coders, was undertaken. Data were collapsed until themes were identified. Triangulation and other strategies for trustworthiness of data were instituted. Results: Theoretical saturation was reached after five focus groups (n = 32). Demographical information indicated physiotherapists of all age groups and both genders working in diversified clinical areas. Seven themes were identified and incorporated information from 'structure', 'content' and 'pedagogy' for anatomy programmes to the psychological impact of course aspects on a student's psyche. Vertical integration of anatomy into later preclinical years, incorporation of physiotherapists to teach anatomy, a 'physiotherapist personality' and 'anatomy know how' for clinical practice were included. Conclusion: Opinions of physiotherapists are important in identifying curricular and teaching considerations that can be incorporated into an anatomy programme designed for physiotherapy students. Clinical implications: Targeted anatomy education for physiotherapy students can aid learning and retention of anatomical knowledge necessary for effective and safe clinical practice.Published here -
Zumana N, Olivier B, Godlwana L, Martin C, 'Intra-rater and inter-rater reliability of six musculoskeletal preparticipatory screening tests'
South African Journal of Physiotherapy 75 (1) (2019)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereBackground: High injury prevalence rates call for effective sports injury prevention strategies, which include the development and application of practical and reliable pre-participatory screening tools.
Objectives: The aim of this study was to investigate the intra-rater and inter-rater reliability of the one-legged hyperextension test (1LHET), the empty can (EC) and full can (FC) tests, the standing stork test (SST), the bridge-hold test (BHT) and the 747 balance test (747BT).
Method: Thirty-five healthy, injury-free male athletes (cricket and soccer players), aged 16–24 years, were evaluated by two physiotherapists. For each of the tests, the participants were evaluated twice (on two consecutive days) by each physiotherapist. Both the intra- and inter-rater reliability were determined. Cohen’s kappa (k) was calculated for the 1LHET, the EC and FC tests and the SST. The intraclass correlation coefficient (ICC) was used for the BHT and the 747BT. A confidence level of 95% (p ≤ 0.05) was applied as the criterion for determining the statistical significance of the results.
Results: The SST presented with the lowest level of intra-rater agreement (ICC = –0.20 to 0.10). On the other hand, the EC test was the only test where one rater achieved an excellent intersessional agreement (k = 0.80; 95% confidence interval [CI] 0.40–1.20). Substantial to excellent results for the inter-rater agreement for both sessions were recorded for the 1LHET (k = 0.70–0.90) and the BHT (ICC = 0.70–0.90).
Conclusion: Reliability values need to be considered when making clinical decisions based on screening tests. A more refined description of the testing procedures and criteria for interpretation might be necessary before including the six screening tests investigated in this study in formal screening protocols.
Clinical implication: Confirmed reliability of screening tests would enable sports professionals to make informed decisions when designing preparticipatory musculoskeletal screening tools and when dealing with the management of injury risks in athletes.
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Olivier B, Quinn SL, Benjamin N, Green AC, Chiu J, Wang W, 'Single-Leg Squat Delicacies-The Position of the Nonstance Limb is an Important Consideration'
Journal of Sport Rehabilitation 28 (4) (2019) pp.318-324
ISSN: 1056-6716 eISSN: 1543-3072AbstractContext: The single-leg squat task is often used as a rehabilitative exercise or as a screening tool for the functional movement of the lower limb. Objective: To establish the effect of 3 different positions of the nonstance leg on 3-dimensional kinematics, muscle activity, and center of mass displacement during a single-leg squat. Design: Within-subjects, repeated-measures design. Setting: Movement analysis laboratory. Participants: A total of 10 participants, aged 28.2 (4.42) years performed 3 squats to 60 degrees of knee flexion with the nonstance (1) hip at 90 degrees flexion and knee at 90 degrees flexion, (2) hip at 30 degrees flexion with the knee fully extended, or (3) hip in neutral/0 degrees and the knee flexed to 90 degrees . Main Outcome Measures: Trunk, hip, knee and ankle joint angles, and center of mass displacement were recorded with inertial sensors while muscle activity was captured through wireless electromyography. Results: Most trunk flexion (21.38 degrees [18.43 degrees ]) occurred with the nonstance hip at 90 degrees and most flexion of the stance hip (23.10 degrees [6.60 degrees ]) occurred with the nonstance hip at 0 degrees . Biceps femoris activity in the 90 degrees squat was 40% more than in the 0 degrees squat, whereas rectus femoris activity in the 0 degrees squat was 29% more than in the 90 degrees squat. Conclusion: The position of the nonstance limb should be standardized when the single-leg squat is used for assessment and be adapted to the aim when used in rehabilitation.Published here -
Shead D, Roos R, Olivier B, Ihunwo A, 'Learning styles of physiotherapy students and teaching styles of their lecturers in undergraduate gross anatomy education'
African Journal of Health Professions Education 10 (4) (2018) pp.228-234
ISSN: 2078-5127AbstractPublished hereBackground. Anatomy is essential to prepare physiotherapy students for future clinical practice. Student learning styles and lecturer teaching styles may influence learning outcomes.
Objective. To determine if the learning style of this student population is consistent and compatible with lecturers’ teaching styles for better learning outcomes.
Methods. A descriptive cross-sectional study was undertaken during 2015 and 2016. The Grasha-Riechmann learning style scale (GRLSS) and Grasha-Riechmann teaching style scale (GRTSS) were used to measure learning styles of two consecutive physiotherapy student cohorts and teaching styles of their anatomy lecturers, respectively.
Results. Student samples were small (group 1: N=59 and group 2: N=54), but response rates high (n=39; 66.1% and n=43; 81.5%) in 2015 and 2016, respectively. Mean Likert scores for GRLSS indicated that the most popular choice for learning style was the dependent style (mean (standard deviation) 3.81 (0.75)) for group 1 and the independent style (3.68 (0.61)) for group 2. Female students preferred the dependent style (group 1: n=12; 30.8% and group 2: n=10; 23.3%) and male students the participant style (group 2: n=6; 14%) of learning. Lecturers scored highest in the expert category of teaching styles. Compatibility between learning and teaching styles was seen in both years based on comparisons made using teaching style clusters, where the identified GRLSS and GRTSS were grouped together and seen to fit into specific cluster categories.
Conclusion. Consistency in learning style choice was observed. A degree of cohesion between student learning styles and their respective lecturers’ teaching styles augured well for good interaction between staff and students.
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Olivier B, Gray J, 'Musculoskeletal predictors of non-contact injury in cricketers - Few and far between? A longitudinal cohort study'
Physical Therapy in Sport 34 (2018) pp.208-215
ISSN: 1466-853XAbstractOBJECTIVE: To determine the musculoskeletal risk factors for injury amongst professional, domestic cricket players. DESIGN: Longitudinal cohort study. SETTING: Medical suites associated with the respective cricket franchises. PARTICIPANTS: Professional, domestic cricket players (n=97). MAIN OUTCOME MEASURES: A pre-participatory musculoskeletal screening battery consisting of 21 tests including flexibility, neural tension, stability, strength, balance and pain provocation tests at the start of the cricket season. Non-contact, low back and lower limb (lower quarter) injuries were monitored throughout the season. Binary logistic regression and receiver operating curves were used to determine predictive value of each test. RESULTS: During the course of the cricket season, 38 of the 97 (39.2%) cricketers sustained a non-contact low back and/or lower limb injury. Increased hip internal rotation ROM on the dominant side (OR=1.065; p=0.036), no symptoms on active slump dominant side (OR=0.289; p=0.014), decreased combined elevation (OR=0.934; p=0.029), increased shoulder internal rotation ROM on the non-dominant side (OR=1.022; p=0.035) and increased GIRD (glenohumeral internal rotation deficit) (OR=1.026; p=0.042) predicted in-season non-contact lower quarter injuries. Although statistically significant, none of these variables were strong predictors of injury as shown by the logistic regression models (accuracy in classification rate: 59.8-62.9%), the area under the curve (AUC) of the receiver operating characteristic (ROC) curves (AUCPublished here -
Balasukumaran T, Olivier B, Ntsiea MV, 'The effectiveness of backward walking as a treatment for people with gait impairments: a systematic review and meta-analysis'
Clinical Rehabilitation 32 (2) (2018) pp.171-182
ISSN: 0269-2155 eISSN: 1477-0873AbstractOBJECTIVE: To investigate the effectiveness of backward walking in the treatment of people with gait impairments related to neurological and musculoskeletal disorders. DESIGN: Systematic review and meta-analysis of randomized and quasi-randomized control studies. DATA SOURCES: Searched from the date of inception to March 2018, and included PubMed, Scopus, Cochrane Library, PEDro, CINAHL, and the MEDLINE databases. METHODS: Investigating the effects of backward walking on pain, functional disability, muscle strength, gait parameters, balance, stability, and plantar pressure in people with gait impairments. The PEDro scale was used to assess the quality. Similar outcomes were pooled by calculating the standardized mean difference. RESULTS: Of the 21 studies (neurological 11 and musculoskeletal 10), 635 participants were included. The average PEDro score was 5.4/10. The meta-analysis demonstrated significant standardized mean difference values in favour of backward walking, with conventional physiotherapy treatment for two to four weeks to reduce pain (-0.87) and functional disability (-1.19) and to improve quadriceps strength (1.22) in patients suffering from knee osteoarthritis. The balance and stability in cases of juvenile rheumatoid arthritis, and gait parameters and muscle strength in anterior cruciate ligament injury improved significantly when backward walking was included as an exercise. There was no significant evidence in favour of backward walking in any of the other conditions. CONCLUSION: The systematic review and meta-analysis suggests that backward walking with conventional physiotherapy treatment is effective and clinically worthwhile in patients with knee osteoarthritis. Insufficient evidence was available for the remaining gait impairment conditions and no conclusions could be drawn.Published here -
Olivier B, Pramod A, Maleka D, 'Trigger point sensitivity is a differentiating factor between cervicogenic and non-cervicogenic headaches: A cross-sectional, descriptive study'
Physiotherapy Canada 70 (4) (2018) pp.323-329
ISSN: 0300-0508 eISSN: 1708-8313AbstractPublished herePurpose: A common factor in all forms of headache is the presence of myofascial trigger points (TrPs). The aim of this study was to compare the presentation of patients with cervicogenic headaches and patients with non-cervicogenic headaches in the sensitivity of TrPs in their upper trapezius, sternocleidomastoid, temporalis, and posterior cervical muscles. Method: This was a descriptive, cross-sectional study. The following variables were compared between patients with cervicogenic (n=20) and patients with non-cervicogenic (n=20) headaches: sensitivity (pain-pressure threshold) of TrPs in the upper trapezius, sternocleidomastoid, posterior cervical, and temporalis muscles (using a handheld, digital algometer); level of disability (using the Henry Ford Hospital Headache Disability Inventory questionnaire); demographics (age, sex); anthropometrics (BMI); and clinical presentation (duration and intensity of symptoms). The independent Student t-test and χ2 test were used to determine the differences between the two groups. Effect sizes (Cohen's d) were calculated when relevant. Results: The two groups were similar in level of disability, demographic and anthropometric data, and clinical presentation. However, TrP sensitivity in the right upper trapezius (p=0.006; Cohen's d=0.96) and the left upper trapezius (p=0.003; Cohen's d=1.06) muscles was higher in the cervicogenic group. Conclusions: Increased sensitivity of TrPs in the upper trapezius muscle may be used as a differentiating factor in the diagnosis of cervicogenic headaches. This finding emphasizes the importance of integrating this muscle into the rehabilitation programs of patients with cervicogenic headache. =
Objectif : les zones gâchettes myofasciales (ZG) sont un facteur courant de toutes les formes de céphalées. La présente étude visait à comparer la présentation de la sensibilité des ZG chez les patients atteints de céphalées cervicogéniques par rapport à celle des patients atteints de céphalées non cervicogéniques dans le trapèze supérieur, le muscle sternocléidomastoïdien, le muscle temporal et le muscle cervical postérieur. Méthodologie : dans la présente étude transversale descriptive, les chercheurs ont comparé les variables suivantes entre les patients atteints de céphalées cervicogéniques (n = 20) et non cervicogéniques (n = 20) : sensibilité (seuils de douleur aux points de pression) des ZG dans le trapèze supérieur, le muscle sternocléidomastoïdien, le muscle cervical postérieur et le muscle temporal (à l'aide d'un algomètre numérique portatif); taux d'incapacité (à l'aide du questionnaire du répertoire du degré d'incapacité lié aux céphalées du Henry Ford Hospital); données démographiques (âge, sexe); valeurs anthropométriques (IMC) et présentation clinique (durée et intensité des symptômes). Ils ont utilisé le test de Student indépendant et le test du chi carré pour établir les différences entre les deux groupes. Ils ont calculé les tailles d'effet (d de Cohen) lorsque la situation le justifiait. Résultats : le taux d'incapacité, les données démographiques, les données anthropométriques et la présentation clinique des deux groupes étaient semblables. Cependant, la sensibilité des ZG dans le trapèze supérieur droit (p = 0,006; d de Cohen = 0,96) et le trapèze supérieur gauche (p = 0,003; d de Cohen = 1,06) était plus élevée dans le groupe cervicogénique. Conclusions : la plus grande sensibilité des ZG dans le trapèze supérieur peut représenter un facteur de différenciation pour diagnostiquer les céphalées cervicogéniques. Cette observation fait ressortir l'importance d'intégrer ce muscle aux programmes de réadaptation des patients atteints de ce type de céphalées.
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Pautz N, Olivier B, Steyn F, 'The use of nonparametric effect sizes in single study musculoskeletal physiotherapy research: A practical primer'
Physical Therapy in Sport 33 (2018) pp.117-124
ISSN: 1466-853XAbstractThere is a strong push for the inclusion of effect size indexes alongside the reporting of statistical analysis in academic journals. Nonparametric methods of analysis have generally been developed less than their parametric counterparts have, and are also generally less well known. Too often researchers use parametric statistics where nonparametric measures would be more appropriate. This holds true for nonparametric measures of effect size, where even when researchers use nonparametric statistics, some use parametric effect size measures to interpret the result. This paper attempts to provide a practical overview and illustration of the correct usage and interpretation of effect size measures for nonparametric statistics for single study designs using real-world physiotherapy data in the worked examples. This primer covers a range of different formulae based on categorical measures of effect size, as well as between- and within-group designs using ranked data. While this primer does use examples focusing on physiotherapy research, the applications of the information can be used in any field of research.Published here -
Pautz N, Olivier B, Steyn F, 'The use of parametric effect sizes in single study musculoskeletal physiotherapy research: A practical primer'
Physical Therapy in Sport 32 (2018) pp.87-97
ISSN: 1466-853XAbstractMany researchers often do not report effect sizes at all, and, if they do report them, often do not report the correct measure for the design that has been used in the research. With the increased level of attention being given to the reporting of effect sizes and their corresponding confidence intervals, it is important that there is field-specific literature pertaining to the calculation and reporting of these measures. This paper acts as a practical primer for the calculation and reporting of effect size measures aimed at, but not limited to, the field of musculoskeletal physiotherapy research. This primer involves a discussion on which effect sizes are appropriate for within and between-subject single study research, illustrating, through examples based on musculoskeletal research data, how these measures are calculated, interpreted, and reported.Published here -
Dafkin C, Green A, Olivier B, McKinon W, Kerr S, 'Distal muscle activity alterations during the stance phase of gait in restless leg syndrome (RLS) patients'
Sleep Medicine 45 (2018) pp.89-93
ISSN: 1389-9457AbstractOBJECTIVE: To assess if there is a circadian variation in electromyographical (EMG) muscle activity during gait in restless legs syndrome (RLS) patients and healthy control participants. METHODS: Gait assessment was done in 14 RLS patients and 13 healthy control participants in the evening (PM) and the morning (AM). Muscle activity was recorded bilaterally from the tibialis anterior (TA), lateral gastrocnemius (GL), rectus femoris (RF) and biceps femoris (BF) muscles. RESULTS: A circadian variation during the stance phase in only TA (PM > AM, p Controls, p < 0.05) during early stance and decreased GL activity (RLS < Controls, p < 0.01) during terminal stance in comparison to control participants in the evening. No other significant differences were noted between RLS patients and control participants. Activation of GL during the swing phase was noted in 79% of RLS patients and in 23% of control participants in the morning compared to 71% and 38% in the evening, respectively. CONCLUSION: EMG muscle activity shows no circadian variation in RLS patients. Evening differences in gait muscle activation patterns between RLS patients and control participants are evident. These results extend our knowledge about alterations in spinal processing during gait in RLS. A possible explanation for these findings is central pattern generator sensitization caused by increased sensitivity in cutaneous afferents in RLS patients.Published here -
Shead DA, Roos R, Olivier B, Ihunwo AO, 'Gross anatomy education for South African undergraduate physiotherapy students'
Anatomical Sciences Education 11 (6) (2018) pp.554-564
ISSN: 1935-9772 eISSN: 1935-9780AbstractEight faculties in South Africa offer undergraduate physiotherapy training with gross anatomy included as a basis for clinical practice. Little information exists about anatomy education for this student body. A 42-question peer-reviewed survey was distributed to physiotherapy gross anatomy course coordinators in all the eight faculties. Seven coordinators from six (75%) of the universities responded. Two respondents' data from the same university were pooled. Collected data show that staff qualifications and experience varied widely and high to average staff to student ratios exist between faculties. Direct anatomy teaching duration was 12.3 (SD +/-5.2) weeks per semester. Total number of weeks in courses per faculty was 27.6 (SD +/-5.7) varying widely between institutions. Calculable direct contact anatomy hours ranged between 100 and 308 with a mean of 207.6 (SD +/-78.1). Direct contact hours in lectures averaged 3.9 (SD +/-1.6) per week and the average direct contact hours in practical sessions were 3.5 (SD +/-1.8) per week. Dissection, prosection, plastinated models, surface anatomy, and e-learning were available across faculties. Ancillary modalities such as vertical integration and inter-professional learning were in use. All faculties had multiple-choice questions, spot tests, and short examination questions. Half had viva-voce examinations and one had additional long questions assessment. Students evaluated teaching performance in five faculties. Four faculties were reviewing anatomy programs to consider implementing changes to anatomy curriculum or pedagogy. The findings highlighted disparity between programs and also identified the need for specific guidelines to develop a unified South African gross anatomy course for physiotherapy students. Anat Sci Educ. (c) 2018 American Association of Anatomists.Published here -
Dafkin C, Green A, Olivier B, McKinon W, Kerr S, 'Circadian variation of flexor withdrawal and crossed extensor reflexes in patients with restless legs syndrome'
Journal of Sleep Research 27 (5) (2018)
ISSN: 0962-1105 eISSN: 1365-2869AbstractPublished hereAn evening state of spinal hyperexcitability has been proposed to be a possible cause of evening increases in restless legs syndrome symptoms. Thus, the objective of the current study was to assess the circadian variation in spinal excitability in patients with restless legs syndrome based on flexor withdrawal reflex and crossed extensor reflex responses. The reflexes were elicited on 12 participants with restless legs syndrome and 12 healthy control participants in the evening (PM) and the morning (AM). Reflex response magnitudes were measured electromyographically and kinematically. Both the reflexes showed a circadian rhythm in participants with restless legs syndrome but not in control participants. Changes in ankle (median flexor withdrawal reflex PM: 16.0 degrees versus AM: 2.8 degrees , P = 0.042; crossed extensor reflex PM: 0.8 degrees versus AM: 0.2 degrees , P = 0.001) angle were significantly larger, and ankle angular velocity (median flexor withdrawal reflex PM: 38.8 degrees s(-1) versus AM: 13.9 degrees s(-1) , P = 0.049; crossed extensor reflex PM: 2.4 degrees s(-1) versus AM: 0.5 degrees s(-1) , P = 0.002) was significantly faster in the evening compared with the morning in participants with restless legs syndrome, for both reflexes. For participants with restless legs syndrome, evening change in hallux angle was significantly larger than morning responses (median PM: 5.0 degrees versus AM: 1.3 degrees , P = 0.012). No significant differences for any of the electromyographic or kinematic variables were observed between participants with restless legs syndrome and controls. The flexor withdrawal reflex and the crossed extensor reflex show a circadian rhythm in participants with restless legs syndrome suggesting an evening increase in spinal excitability. We hypothesize the circadian variation in spinal excitability may be due to a possible nocturnal form of afferent circuitry central sensitization in the dorsal horn of the spinal cord in patients with restless legs syndrome.
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Ravat S, Olivier B, Gillion N, Lewis F, 'Laterality judgment performance between people with chronic pain and pain-free individuals: a systematic review protocol'
JBI Database of Systematic Reviews and Implementation Reports 16 (8) (2018) pp.1621-1627
ISSN: 2202-4433 eISSN: 2202-4433AbstractREVIEW QUESTION/OBJECTIVE: The objective of this review is to establish the association between chronic pain and laterality judgment. Specifically, the review question: Is there a difference in laterality judgment in people with chronic pain and pain-free individuals?Published here -
Green A, Kerr S, Olivier B, Meiring R, Dafkin C, McKinon W, 'A simulated rugby match protocol induces physiological fatigue without decreased individual scrummaging performance'
The South African Journal of Sports Medicine 29 (1) (2017) pp.1-6
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBackground: A rugby union game consists of 80 minutes of strenuous exertion. Forwards are required to participate in the arduous activity of scrummaging throughout a game.
Objectives: The purpose of this study was to identify whether rugby-match simulated fatigue modified individual scrummaging technique and reduced performance.
Methods: Twelve forwards (body mass 106.2±13.3 kg; stature 179.5±8.4 cm) had individual scrum kinetics and kinematics assessed prior to and following a protocol that simulated a rugby match. The simulated rugby match protocol required participants to run at various velocities and perform rugby specific tasks. Rating of Perceived Exertion (RPE) was assessed using a 6-20 Borg scale and Visual Analogue Scale (VAS). Blood lactate, heart rate and RPE were measured prior to, at mid-point and after the simulated game, while markers of muscle damage (blood creatine kinase activity (CK) and urea) were measured prior to and following the protocol.
Results: RPE (p
Conclusion: Physiological fatigue does not influence individual scrummaging performance and technique.
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Dafkin C, Green A, Olivier B, McKinon W, Kerr S, 'Plantar reflex excitability is increased in the evening in restless legs syndrome patients'
Neuroscience Letters 660 (2017) pp.74-78
ISSN: 0304-3940AbstractPublished hereOBJECTIVE: To investigate if diurnal changes in spinal excitability (plantar reflex) occur in restless legs syndrome (RLS) participants compared to healthy matched controls. METHODS: Thirteen RLS participants and 13 healthy control participants' plantar reflex responses were evaluated in the evening (PM) and the morning (AM). Plantar reflex responses were assessed electromyographically, using motion analysis (kinematically) and by subjective nociception (Visual Analogue Scale). RESULTS: RLS participants showed a circadian variation in plantar reflex responses whilst control participants did not. Evening ankle angle changes were larger and faster in RLS participants compared to morning responses. In addition RLS participants displayed significantly smaller change in ankle angle and significantly slower ankle movements in the evening and the morning as well as significantly lower lateral gastrocnemius maximum amplitude in the compared to control participants. CONCLUSION: The findings of the current study support the theory of RLS circadian fluctuations in spinal excitability. An unexpected finding was decreased plantar reflex responses in RLS participants compared to healthy control participants. However this finding supports the theory of mechanical hypoesthesia in RLS. The results of this study provide further insight into the pathophysiology of RLS, highlighting that not all sensory processing is affected in the same manner.
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Martin C, Olivier B, Benjamin N, 'Asymmetrical Abdominal Muscle Morphometry is Present in Injury-Free Adolescent Cricket Pace Bowlers: A Prospective Observational Study'
Physical Therapy in Sport 28 (2017) pp.34-42
ISSN: 1466-853XAbstractPublished hereObjectives.
This study aimed to determine if abdominal muscle thickness, activation and symmetry are associated with prospective in-season injury among adolescent cricket pace bowlers.
Design.
A quantitative, prospective, observational study design was used.
Setting.
Data was collected at an indoor venue at a secondary school.
Participants.
28 injury-free, male, adolescent pace bowlers between the ages of 13 and 18 participated.
Main outcome measures.
Muscle thickness of the transversus abdominis (TA), internal oblique (IO) and external oblique (EO) muscles were measured at rest and during an abdominal drawing-in maneuver (ADIM) i.e. activation, using ultrasound imaging. Incidence of injury was monitored monthly during the cricket season.
Results.
Thickness of the non-dominant IO at rest was greater than the dominant side for pace bowlers who remained injury free during the cricket season (p = 0.01, effect size (ES) = 0.65). This was, however not the case for bowlers who sustained injuries (p = 0.47; ES = 0.24). TA percentage change during ADIM (activation) on the dominant side was less in bowlers who sustained non-contact injuries compared to those who remained injury free (p = 0.03; ES = 1.17).
Conclusions.
Asymmetry in IO thickness may play a protective role against injury, whilst poor TA activation on the dominant side may pose a risk to injury.
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Basson A, Olivier B, Ellis R, Coppieters M, Stewart A, Mudzi W, 'The effectiveness of neural mobilisation for neuro-musculoskeletal conditions: A systematic review and meta-analysis'
Journal of Orthopaedic & Sports Physical Therapy 47 (9) (2017) pp.593-615
ISSN: 0190-6011 eISSN: 1938-1344AbstractPublished hereStudy Design.
Systematic review with meta-analysis.
Objectives.
To determine the efficacy of neural mobilization (NM) for musculoskeletal conditions with a neuropathic component.
Background.
Neural mobilization, or neurodynamics, is a movement-based intervention aimed at restoring the homeostasis in and around the nervous system. The current level of evidence for NM is largely unknown.
Methods.
A database search for randomized trials investigating the effect of NM on neuromusculoskeletal conditions was conducted, using standard methods for article identification, selection, and quality appraisal. Where possible, studies were pooled for meta-analysis, with pain, disability, and function as the primary outcomes.
Results.
Forty studies were included in this review, of which 17 had a low risk of bias. Meta-analyses could only be performed on self-reported outcomes. For chronic low back pain, disability (Oswestry Disability Questionnaire [0–50]: mean difference, −9.26; 95% confidence interval [CI]: −14.50, −4.01; P.11) but showed some positive neurophysiological effects (eg, reduced intraneural edema). Due to a scarcity of studies or conflicting results, the effect of NM remains uncertain for various conditions, such as postoperative low back pain, cubital tunnel syndrome, and lateral epicondylalgia.
Conclusion.
This review reveals benefits of NM for back and neck pain, but the effect of NM on other conditions remains unclear. Due to the limited evidence and varying methodological quality, conclusions may change over time.
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Ntsiea MV, Mudzi W, Comley-White N, Van Aswegen H, Olivier B, Roos R, Pilusa S, Potterton J, Myezwa H, Benjamin N, Naidoo V, 'University of the Witwatersrand physiotherapy undergraduate curriculum alignment to medical conditions of patients within Gauteng state health facilities'
South African Journal of Physiotherapy 73 (1) (2017)
ISSN: 0379-6175 eISSN: 2410-8219AbstractBackground: The healthcare sector requires graduates with the ability to confidently assess and manage the majority of the medical conditions seen in hospitals. Objective: To establish whether the most prevalent medical conditions treated by physiotherapists in Gauteng (South Africa) state health facilities align with the University of the Witwatersrand (Wits) physiotherapy curriculum. Methods: This was a retrospective review of condition-related statistics from physiotherapy departments within the Gauteng province state health facilities. Data from all Gauteng government hospitals that had submitted at least 75% of their physiotherapy condition-related statistics to the provincial statistics coordinator from January 2012 to December 2014 were considered and compared to medical conditions covered in the Wits 2015 physiotherapy curriculum to check if all conditions listed in the Gauteng statistics appeared within the Wits curriculum document. The number of teaching hours for the common conditions was noted to check the emphasis given to these conditions in the curriculum. Results: Eighty-three per cent of the hospitals submitted 75% of their monthly statistics. Overall, the most common conditions treated were lower limb fractures (13%) followed by stroke (7.6%) (n = 705 597). Within the neuro-musculoskeletal category, the most common conditions after lower limb fractures were soft tissue injuries (15.1%) (n = 330 511). The most common cardiopulmonary conditions were tuberculosis (24.9%), followed by pneumonia (13.8%) (n = 94 895). The most common neurological conditions were stroke (30.9%) followed by cerebral palsy (17%) (n = 174 024). Within the non-specified categories, the number of intensive care unit (ICU) patients was the highest (23%), followed by sputum induction (21%) (n = 138 187). The most common conditions that were emphasised within the Wits curriculum as indicated by the teaching hours: fractures, 14.5 (66%) of 22 third-year orthopaedics hours; stroke, 30 (73%) of 41 third-year neurology hours; soft tissue injuries, 18 (38%) of 48 fourth-year neuro-musculoskeletal hours; back lesions, 24 (50%) of 48 fourth-year neuro-musculoskeletal hours; and ICU patients, 30 (79%) of 38 fourth-year cardiopulmonary hours. Conclusion: The Wits physiotherapy curriculum covers all medical conditions treated by physiotherapists within the Gauteng state health facilities, and overall, the curriculum prepares the students to practise in a variety of situations.Published here -
Janse van Rensburg L, Dare M, Louw Q, Crous L, Cockroft J, Williams L, Olivier B, 'Pelvic and hip kinematics during single-leg drop-landing are altered in sports participants with long-standing groin pain: a cross-sectional study'
Physical Therapy in Sport 26 (2017) pp.20-26
ISSN: 1466-853XAbstractPublished hereObjectives
The aim of this study was to determine the differences in three-dimensional pelvic and hip kinematics during a single-leg drop-landing task in active sports participants with long-standing groin pain compared to healthy matched controls.Design
This was a descriptive study incorporating a cross-sectional design.Setting
The study was conducted at the Unit for Human Movement Analysis, Stellenbosch University, South Africa.Participants
The study sample was comprised of 20 male club level soccer, rugby, running and cycling participants between the ages of 18 and 55 years. Ten cases with long-standing groin pain and ten asymptomatic matched controls participated.Main outcome measures
Three-dimensional pelvic and hip kinematics were captured with an optical motion capture system during a single-leg drop-landing task.Results
Participants with groin pain landed with more downward lateral pelvic tilt (0.77°, p = 0.01, r = 0.35), hip abduction (2.05°, pConclusions
Sports participants with long-standing groin pain have altered pelvic and hip kinematics during single-leg drop-landing compared to healthy controls. The kinematic differences may contribute towards the persistent nature of groin pain, although these strategies may also be present as a result of the presence or the expectation of pain. -
Green A, Kerr S, Dafkin C, Olivier B, McKinon W, 'A lower body height and wider foot stance are positively associated with the generation of individual scrummaging forces in rugby'
International Journal of Performance Analysis in Sport 17 (1/2) (2017) pp.177-189
ISSN: 2474-8668 eISSN: 1474-8185AbstractPublished hereA scrum is a contest to win possession of the rugby ball. The current study investigated potential kinematic parameters related to individual scrummaging force production. Twenty-five “tight-five” players (body mass: 103.0 ± 12.1 kg; height: 1.85 ± .09 m) individually scrummaged against an instrumented ergometer, while body kinematics were captured. Pearson’s correlations between force generation and kinematics of individual scrummaging performances were performed. Body mass was correlated to the engagement (r = .641), peak (r = .531) and sustained (r = .438) forces. Stance width was significantly correlated with the individual scrummaging forces at engagement (r = .422) and sustained phases (r = .540) but not at peak phase (r = .369). Higher scrummaging forces were achieved at lower pelvic and back heights. The only significant relationship during the start-sustained phase was the change in pelvic height (r = −.562). Changes in right hip (r = −.477) and right knee (r = .474) angles were correlated to the change in force during engagement-peak phase. During engagement-sustained phases, change in force magnitude was correlated to changes in pelvic height (r = −.585), left hip (r = .549) and right ankle (r = .657). The change in pelvic height (r = −.518) was the only correlate during the peak-sustained phase. The presented data highlight the role of a lower body height and wider stance in the attainment of greater individual scrummaging force.
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Olivier B, Gillion N, Stewart AV, McKinon W, 'Reduced nondominant lumbar multifidi cross-sectional area is a precursor of low back injury in cricket fast bowlers'
Scandinavian Journal of Medicine & Science in Sports 27 (12) (2017) pp.1927-1933
ISSN: 0905-7188 eISSN: 1600-0838AbstractAsymmetry in the lumbar multifidi muscle (LM) cross-sectional area (CSA) is associated with low back injury. The aim of this prospective cohort study was to investigate the symmetry of the CSA of LM at L3, L4, and L5, in the context of simultaneous injury monitoring. Injury free, male, right-handed cricket fast bowlers playing at a nonprofessional level participated in this study. LM CSA at L3, L4, and L5 vertebral levels was measured through the use of ultrasound imaging in prone. The primary outcome measure of the study was the incidence of an injury during a cricket season of eight-month duration. Twenty-six fast bowlers (aged 21.8 +/- 1.8 years) participated. No difference was found between the nondominant and the dominant LM CSA among injury free bowlers (P>.05). However, in bowlers who sustained a lower back injury during the cricket season, the nondominant CSA at L3 (nondominant median 5.80 cm(2) , range 3.69 cm(2) ; dominant median 7.38 cm(2) , range 2.61 cm(2) ; P=.04) and L5 (nondominant median 6.94 cm(2) , range 2.10 cm(2) ; dominant median 7.38 cm(2) , range 3.54 cm(2) ; P=.04) is smaller compared to the dominant side. These findings may indicate that a side-to-side difference in LM CSA may be a precursor of injury.Published here -
Olivier B, Verdonck M, Casteleijn D, 'Digital technologies in occupational therapy and physiotherapy undergraduate and postgraduate education: a scoping review protocol'
JBI Database of Systematic Reviews and Implementation Reports 15 (11) (2017) pp.2624-2629
ISSN: 2202-4433 eISSN: 2202-4433AbstractREVIEW QUESTION AND OBJECTIVE: How have digital technologies been used in occupational therapy and physiotherapy undergraduate and postgraduate education?Specifically, the objective of this scoping review is to present an overview of research on the use of digital technologies in terms of type of digital technology used, pedagogy associated with the use of digital technology, subject/topic/area of application, experiences/perception of digital technology used, outcomes of the digital technology used and challenges to the use of digital technologies in occupational therapy and physiotherapy undergraduate and postgraduate education.Published here -
Olivier B, Naidoo V, Tau M, Quinn SL, Stewart A, 'The association between hip dysfunction and lower quarter injuries in long distance runners: a systematic review protocol'
JBI Database of Systematic Reviews and Implementation Reports 15 (10) (2017) pp.2433-2436
ISSN: 2202-4433 eISSN: 2202-4433AbstractREVIEW QUESTION/OBJECTIVE:: The objective of this review is to establish the association between hip dysfunction and lower quarter (low back and lower limb) injuries in long distance runners. Specifically the review question is: Are long distance runners with hip dysfunction at risk of lower quarter (low back and lower limb) injuries?Published here -
Martin C, Olivier B, Benjamin N, 'The Functional Movement Screen in the Prediction of Injury in Adolescent Cricket Pace Bowlers: An Observational Study'
Journal of Sport Rehabilitation 26 (5) (2017) pp.386-395
ISSN: 1056-6716 eISSN: 1543-3072AbstractPublished hereContext:
The Functional Movement Screen (FMS) has been found to be a valid preparticipation screening tool in the prediction of injury among various athletes in different sports. The validity thereof in the prediction of injury among adolescent cricketers is yet to be established.Objective:
To determine if a preseason FMS total score is a valid predictor of in-season injury among adolescent pace bowlers.Design:
Prospective observational quantitative study.Setting:
Bowlers performed the FMS before the start of the season. Injury incidence was monitored monthly throughout the season. The student t test and Fisher’s exact test were used to compare the FMS scores of the injured and noninjured bowlers as well as the injured and noninjured bowlers who scored ≤ 14.Participants:
27 injury-free, male, adolescent pace bowlers.Main Outcome Measures:
The FMS (scoring criteria and score sheet) and standardized self-administered injury questionnaire.Results:
There was no difference between the noninjured group (16.55 ± 2.57) and the injured (16.1 ± 2.07) group in terms of FMS scores. There was no significant difference between injured and noninjured bowlers who scored ≤ 14. A total FMS score of 14 does not provide the sensitivity needed to assess injury risk among adolescent pace bowlers and no other accurate cut-off score could be calculated.Conclusion:
Preseason observed total FMS score is a poor predictor of in-season injury among adolescent pace bowlers. Further research should be conducted to determine if a specific FMS test will be a more valid predictor of injury. -
Green A, Kerr S, Olivier B, Dafkin C, McKinon W, 'The relationships between rugby ground pass accuracy and kinematic variables resulting from two different pelvic orientations'
The South African Journal of Sports Medicine 28 (2) (2016) pp.51-54
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereIntroduction: Despite having been largely understudied, one of the crucial components of a team’s success in rugby is accurate passing. This study identified biomechanical correlates of the rugby ground pass and accuracy performance.
Methods: Sixteen club players (height 1.77±0.04 m; mass 86.8±16.8 kg) undertook a combined total of 96 passes and their respective body kinematics were analysed concurrent with measurements of pass accuracy at 10 m. Two distinct types of body orientations were found to be utilised by the players: a side-on orientation (pelvic rotation >80 °) and a front-on orientation (pelvic rotation Results: Side-on body orientation passes were more accurate than front-on body orientation passes (pConclusion: Therefore different strategies exist within players to perform the ground pass with varying grades of accuracy. -
Shead D, Roos R, Olivier B, Ihunwo AO, 'Gross anatomy curricula and pedagogical approaches for undergraduate physiotherapy students: a scoping review protocol'
JBI Database of Systematic Reviews and Implementation Reports 14 (10) (2016) pp.98-104
ISSN: 2202-4433 eISSN: 2202-4433AbstractPublished hereThis scoping review seeks to collate and describe the body of existing literature pertaining to curricula and pedagogies used in the gross anatomy education of undergraduate physiotherapy students.Specifically, the review questions are as follows.
- What approaches to gross anatomy curricula and pedagogies used to teach undergraduate physiotherapy students have been documented in available literature?
- What are the outcomes associated with the various approaches to anatomy curricula and pedagogies used to teach undergraduate physiotherapy students?
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Orchard JW, Ranson C, Olivier B, Dhillon M, Gray J, Langley B, Mansingh A, Moore IS, Murphy I, Patricios J, Alwar T, Clark CJ, Harrop B, Khan HI, Kountouris A, Macphail M, Mount S, Mupotaringa A, Newman D, O'Reilly K, Peirce N, Saleem S, Shackel D, Stretch R, Finch CF, 'International consensus statement on injury surveillance in cricket: a 2016 update'
British Journal of Sports Medicine 50 (20) (2016) pp.1245-1251
ISSN: 0306-3674 eISSN: 1473-0480AbstractCricket was the first sport to publish recommended methods for injury surveillance in 2005. Since then, there have been changes to the nature of both cricket and injury surveillance. Researchers representing the major cricket playing nations met to propose changes to the previous recommendations, with an agreed voting block of 14. It was decided that 10 of 14 votes (70%) were required to add a new definition element and 11 of 14 (80%) were required to amend a previous definition. In addition to the previously agreed 'Match time-loss' injury, definitions of 'General time-loss', 'Medical presentation', 'Player-reported' and 'Imaging-abnormality' injuries are now provided. Further, new injury incidence units of match injuries per 1000 player days, and annual injuries per 100 players per year are recommended. There was a shift towards recommending a greater number of possible definitions, due to differing contexts and foci of cricket research (eg, professional vs amateur; injury surveillance systems vs specific injury category studies). It is recommended that researchers use and report as many of the definitions as possible to assist both comparisons between studies within cricket and with those from other sports.Published here -
Quinn S, Olivier B, Wood W, 'The short-term effects of trigger point therapy, stretching and medicine ball exercises on accuracy and back swing hip turn in elite, male golfers - a randomised controlled trial'
Physical Therapy in Sport 22 (2016) pp.16-22
ISSN: 1466-853XAbstractPublished hereObjectives
This study aimed to compare the effect of myofascial trigger point therapy (MTPT) and stretching, MTPT and medicine ball exercises, and no intervention, on hip flexor length (HFL), golf swing biomechanics and performance in elite, male golfers.
Design
Single blind, randomised controlled trial with two experimental groups (stretch group: MTPT and stretching; and the ball group: MTPT, a single stretch and medicine ball exercises) and one control group (no intervention).
Setting
Professional golf academy.
Participants
One hundred, elite, male golfers aged 16–25 years.
Main outcome measures
HFL, 3D biomechanical analysis of the golf swing, club head speed (CHS), smash ratio, accuracy and distance at baseline and after the interventions.
Results
Backswing hip turn (BSHT) improved in the ball group relative to the control group (p = 0.0248). Accuracy in the ball group and the stretch group improved relative to the control group (Fisher's exact = 0.016).
Conclusions
Other performance parameters such as: smash ratio, distance and CHS were not compromised by either intervention. This study advocates the use of MTPT combined with medicine ball exercises over MTPT combined with stretching in the treatment of golfers with shortened hip flexors – even immediately preceding a tournament.
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Olivier B, Taljaard T, Burger E, Brukner P, Orchard J, Gray J, Botha N, Stewart A, McKinon W, 'Which Extrinsic and Intrinsic Factors are Associated with Non-Contact Injuries in Adult Cricket Fast Bowlers?'
Sports Medicine 46 (1) (2016) pp.79-101
ISSN: 0112-1642 eISSN: 1179-2035AbstractBACKGROUND: The high prevalence of injury amongst cricket fast bowlers exposes a great need for research into the risk factors associated with injury. Both extrinsic (environment-related) and intrinsic (person-related) risk factors are likely to be implicated within the high prevalence of non-contact injury amongst fast bowlers in cricket. Identifying and defining the relative importance of these risk factors is necessary in order to optimize injury prevention efforts. OBJECTIVE: The objective of this review was to assess and summarize the scientific literature related to the extrinsic and intrinsic factors associated with non-contact injury inherent to adult cricket fast bowlers. METHOD: A systematic review was performed in compliance with the PRISMA guidelines. This review considered both experimental and epidemiological study designs. Studies that included male cricket fast bowlers aged 18 years or above, from all levels of play, evaluating the association between extrinsic/intrinsic factors and injury in fast bowlers were considered for inclusion. The three-step search strategy aimed at finding both published and unpublished studies from all languages. The searched databases included MEDLINE via PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), the Cochrane Controlled Trials Register in the Cochrane Library, Physiotherapy Evidence Database (PEDro), ProQuest 5000 International, ProQuest Health and Medical Complete, EBSCO MegaFile Premier, Science Direct, SPORTDiscus with Full Text and SCOPUS (prior to 28 April 2015). Initial keywords used were 'cricket', 'pace', 'fast', 'bowler', and 'injury'. Papers which fitted the inclusion criteria were assessed by two independent reviewers for methodological validity prior to inclusion in the review using standardized critical appraisal instruments from the Joanna Briggs Institute Meta Analysis of Statistics Assessment and Review Instrument (JBI-MAStARI). RESULTS: A total of 16 studies were determined to be suitable for inclusion in this systematic review. The mean critical appraisal score of the papers included in this study was 6.88 (SD 1.15) out of a maximum of 9. The following factors were found to be associated with injury: bowling shoulder internal rotation strength deficit, compromised dynamic balance and lumbar proprioception (joint position sense), the appearance of lumbar posterior element bone stress, degeneration of the lumbar disc on magnetic resonance imaging (MRI), and previous injury. Conflicting results were found for the association of quadratus lumborum (QL) muscle asymmetry with injury. Technique-related factors associated with injury included shoulder-pelvis flexion-extension angle, shoulder counter-rotation, knee angle, and the proportion of side-flexion during bowling. Bowling workload was the only extrinsic factor associated with injury in adult cricket fast bowlers. A high bowling workload (particularly if it represented a sudden upgrade from a lower workload) increased the subsequent risk to sustaining an injury 1, 3 or 4 weeks later. CONCLUSION: Identifying the factors associated with injury is a crucial step which should precede the development of, and research into, the effectiveness of injury prevention programs. Once identified, risk factors may be included in pre-participation screening tools and injury prevention programs, and may also be incorporated in future research projects. Overall, the current review highlights the clear lack of research on factors associated with non-contact injury, specifically in adult cricket fast bowlers. SYSTEMATIC REVIEW REGISTRATION NUMBER: Johanna Briggs Institute Database of Systematic Reviews and Implementation Reports 1387 (Olivier et al., JBI Database Syst Rev Implement Rep 13(1):3-13. doi: 10.11124/jbisrir-2015-1387 , 2015).Published here -
Kerr S, Olivier B, Green A, Dafkin C, Wood S, Woodiwiss A, Mckinon W, 'Analysis of Balance And Body Positioning In Ballerinas With Different Levels Of Skill'
African Journal for Physical Activity and Health Sciences 22 (32) (2016) pp.883-895
ISSN: 2411-6939 eISSN: 2411-6939AbstractPublished hereBallet is an art that requires great skill and balance to achieve aesthetic performance. The aim of this study was to determine whether there were differences in the size of the base of support (BoS) and skill (using two previously identified indicators of aesthetic performance: back arch angle and leg separation angle) between two groups of ballerinas with different skill levels. Twenty one professional female ballerinas classed as Corps de Ballet dancers (≤ 2 years academy dancing experience; n=14) and Soloists (>2 years academy dancing experience; n=7) participated in this cross-sectional, descriptive study. All ballerinas performed three unassisted, standard ballet positions en pointe (retiré, arabesque and penché), each held for at least three seconds. Retro-reflective markers were attached to specific anatomical landmarks and tracked by a 12 camera system. The size of the BoS was calculated using a pressure platform. The BoS was significantly smaller for the Soloists than the Corps de Ballet dancers during arabesque (p=0.0239) and penché (p=0.0337) but not retiré (p=0.1131). A statistically significant, inverse correlation was found between BoS and age for all three positions: arabesque (r=-0.4948, p=0.0368) and penché (r=-0.6232, p=0.0099) and retiré (r=-0.5623, p=0.0151). There was no kinematic difference (back arch angle and leg separation angle) between the groups. Our study provides insight into the biomechanics of balance in retiré, arabesque and penché. A link exists between age, skill required for the task and size of the BoS. More experienced dancers may utilise strategies other than a large BoS to maintain balance.
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Green A, Kerr S, Olivier B, Dafkin C, McKinon W, 'The trade-off between distance and accuracy in the Rugby Union place kick: a cross-sectional, descriptive study'
Kinesiology 48 (2) (2016) pp.251-257
ISSN: 1331-1441 eISSN: 1848-638XAbstractPublished hereLittle attention has been given to the rotational kinematics of the rugby union place kicking performance, especially in a field setting. The place kick is a means to score points. By maximizing the distance and accuracy a kicker is able to achieve increases the number of point scoring opportunities available to a team. The hypothesis of this study was that there is a relationship between distance and accuracy and the rotational kinematics of place kicking performance of rugby players in the field setting. Twelve first-team university rugby players had their full body kinematics measured for five place kicks. Kick distance and accuracy were directly measured. The current study showed a positive correlation between torso (r=.76) and pelvis (r=.66) rotation with kick distance. Place kick distance (r=.24) or accuracy (r=.54) were not correlated to playing experience. Negative correlations between stance elbow flexion (r=-.78), torso rotation (r=-.74) and X-factor (r=-.79) with kick accuracy were noted. Place kick distance could potentially be maximized by improving torso and pelvic rotations. Place kick accuracy could be improved by full extension of the stance arm. The data suggests that larger torso rotations may promote kicking distance; however, they impede kicking accuracy.
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Bell-Jenje T, Olivier B, Wood W, Rogers S, Green A, McKinon W, 'The association between loss of ankle dorsiflexion range of movement, and hip adduction and internal rotation during a step down test'
Manual Therapy 21 (2015) pp.256-261
ISSN: 1356-689X eISSN: 1532-2769AbstractA pattern of excessive hip adduction and internal rotation with medial deviation of the knee has been associated with numerous musculo-skeletal dysfunctions. Research into the role that ankle dorsiflexion (DF) range of motion (ROM) play in lower limb kinematics is lacking. The objective of this cross-sectional, observational study was to investigate the relationship between ankle DF ROM, and hip adduction and hip internal rotation during a step-down test with and without heel elevation in a healthy female population. Hip and ankle ROM was measured kinematically using a ten-camera Optitrack motion analysis system. Thirty healthy female participants (mean age = 20.4 years; SD = 0.9 years) first performed a step-down test with the heel of the weight bearing foot flat on the step and then with the heel elevated on a platform. Ankle DF, hip adduction and hip internal rotation were measured kinematically for the supporting leg. Participants who had 17 degrees or less of ankle DF ROM displayed significantly more hip adduction ROM (p = 0.001; Cohen's d effect size = 1.2) than the participants with more than 17 degrees of DF during the step-down test. Participants with limited DF ROM showed a significant reduction in hip adduction ROM during the elevated-heel step-down test (p = 0.008). Hip internal rotation increased in both groups during the EHSD compared to the step-down test (p > 0.05) Reduced ankle DF ROM is associated with increased hip adduction utilised during the step-down test. Ankle DF should be taken into account when assessing patients with aberrant frontal plane lower limb alignment.Published here -
Olivier B, Stewart A, Green A, McKinon W, 'Cricket Pace Bowling: the Trade-Off between Optimising Knee Angle for Performance Advantages v. Injury Prevention'
The South African Journal of Sports Medicine 27 (3) (2015) pp.76-81
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBackground. The cricket pace bowler utilises various strategies, including a more extended front knee angle, to achieve optimal performance benefits. At times this is done to the detriment of injury prevention. Objective. To investigate the relationship between three-dimensional (3D) knee kinematics during pace bowling action, injury incidence and bowling performance at the start and end of a cricket season. Methods. Knee angle and ball release (BR) speed of injury-free premier league (club level) cricket pace bowlers over the age of 18 years were measured at the start and end of the cricket season. Kinematic, injury- and bowling performance-related (BR speed and accuracy) data were analysed using paired and independent Student’s t-tests, Pearson’s correlation coefficient, χ2 test and a two-way analysis of covariance with repeated measures. Results. Thirty-one bowlers participated in this study, and kinematic data of a subset of 17 were analysed. Nine bowlers (53%) sustained injuries during the cricket season. No statistically significant relationship was found between knee angle and injury. Bowlers who did not sustain an injury bowled with more knee flexion at the start of the season (mean (standard deviation) 157.07˚ (12.02˚)) than at the end of it (163.95˚ (6.97˚)) (p=0.01). There was no interaction between accuracy and knee angle. There was a good to excellent inverse correlation between BR speed and knee angle among bowlers who remained injury free (r=–0.79; p=0.18). Conclusion. Bowlers who remain injury free during the course of the season may use strategies other than the front knee angle to facilitate high BR speeds. Technique-related variables which are more ‘protective’ against injuries while allowing for higher BR speeds should be further investigated among bowlers.
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Dafkin C, Green A, Kerr S, Veliotes D, Olivier B, McKinon W, 'The Interrater Reliability of Subjective Assessments of the Babinski Reflex'
Journal of Motor Behavior 48 (2) (2015) pp.116-121
ISSN: 0022-2895 eISSN: 1940-1027AbstractThe Babinski reflex is a clinical diagnostic tool; however, the interrater reliability of this tool is currently greatly contested. A comparison between rater groups with objective measurements of the Babinski reflex was therefore conducted. Fifteen recorded Babinski reflexes were assessed by 12 neurologists and 12 medical students as being either pathological or nonpathological. Kinematic and electromyographic variables were collected and used to assess which aspects of the Babinski reflex predict classification. Substantial interrater agreement within the neurologist and student groups (kappa = .72 and .67, respectively) was shown; however, there were some differing aspects between what neurologists and students used to assess the reflex as determined by objective kinematic measurements.Published here -
Olivier B, Naidoo V, Mudzi W, Van Aswegen H, Potterton J, Myezwa H, Roos R, Godlwana L, Maleka D, Mtshali S, Ntsiea V, Stewart A, Romm M, Humphries C, Watt B, 'The implementation of the Objective Structured Practical Examination (OSPE) method: students’ and examiners’ experiences'
African Journal of Health Professions Education 7 (1) (2015) pp.16-21
ISSN: 2078-5127AbstractPublished hereBackground. Traditionally, physiotherapy practical skills have been assessed by a method that relies on the subjective interpretation of competency by the examiner and lacks the formative benefits of assessment.
Objective. To describe and compare student performance and satisfaction and examiner satisfaction with regard to the Objective Structured Practical Examination (OSPE) and traditional mark sheets during the practical skills assessment.
Method. Students and examiners taking part in the second-year physiotherapy practical skills test were invited to participate by completing a series of questionnaires. Performance of techniques was marked using both the OSPE and traditional mark sheets.
Results. Sixty-seven students and nine examiners participated in the study. Students scored an average of 4.6% (SD ±16.4) better when using the traditional mark sheet. Nonetheless, students and examiners expressed a preference for the OSPE mark sheet.
Conclusion. The OSPE mark sheet allows for increased objectivity, as the specific micro-skills are clearly listed and appropriately weighted. This resulted in increased satisfaction, but a decrease in marks obtained. By assessing the effect of implementation of the OSPE method on performance and satisfaction, change in the current situation can be monitored.
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Basson A, Olivier B, Ellis R, Coppieters M, Stewart A, Mudzi W, 'The effectiveness of neural mobilizations in the treatment of musculoskeletal conditions: a systematic review protocol'
JBI Database of Systematic Reviews and Implementation Reports 13 (1) (2015) pp.65-75
ISSN: 2202-4433 eISSN: 2202-4433AbstractPublished hereREVIEW QUESTION/OBJECTIVE: The objective of this review is to identify the effectiveness of neural mobilization techniques in various neuro-musculoskeletal conditions. Outcomes will be analyzed in terms of subgroups such as low back pain, cervico-brachial pain and carpal tunnel syndrome. BACKGROUND: Musculoskeletal disorders were ranked as the second largest contributor to disability worldwide in a study on the global burden of disease. Low back pain and neck pain contributed to 70% of disability in this comprehensive population-based study. Low back pain and neck pain are multifactorial, with heterogeneous populations. It has been proposed that targeting subgroups of patients may result in better treatment outcomes. Neck pain associated with upper limb pain is prevalent. These patients are more disabled than patients with neck pain alone. Similarly, low back pain with leg pain is a common phenomenon and is acknowledged as a predictor for chronicity.Neuropathic pain is often associated with musculoskeletal complaints including low back pain, whiplash associated disorders (WAD) and acute or chronic radiculopathy, and can be a feature of syndromes such as cervico-brachial pain syndrome. According to the International Association for the Study of Pain, neuropathic pain can be described as "pain caused by a lesion or disease of the somatosensory nervous system." Leg pain associated with back pain can be caused by central sensitization, denervation, nerve sensitization or somatically referred pain. In patients with WAD, neck pain is the most common symptom, but upper limb pain, weakness, paraesthesia and anesthesia are often present. Other conditions in which neural tissue is thought to contribute to the clinical picture are, for instance, lateral epicondalalgia and carpal tunnel syndrome.Management strategies for back pain and neck pain are often multimodal. However, the evidence for effective treatment of nerve related pain is lacking. Neural mobilizations are often used to affect the neural structures in conditions with signs of neural involvement or neural mechano-sensitivity. Neural mobilizations are defined as interventions aimed at affecting the neural structures or surrounding tissue (interface) directly or indirectly through manual techniques or exercise. Neural mobilizations have been studied in various populations such as low back pain, carpal tunnel syndrome, lateral epicondalalgia and cervico-brachial pain. Neural mobilization techniques studied include cervical lateral glides for cervico-brachial pain, nerve gliding exercises for the treatment of carpal tunnel syndrome, cervical lateral glides for lateral epicondalalgia and the slump as a neural mobilization technique in the treatment of low back pain. No specialized equipment is needed in the performance of neural mobilization techniques, which contributes to its popularity.Neural mobilization is said to affect the axoplasmic flow, movement of the nerve and its connective tissue and the circulation of the nerve by alteration of the pressure in the nervous system and dispersion of intraneural oedema. Neural mobilization decreases the excitability of dorsal horn cells. Neural mobilizations can be performed in various ways using passive movement, manual mobilization of the nerve or interface, and exercise. The aim of neural mobilization is to restore the mechanical and neurophysiological function of the nerve.Only one systematic review on the effectiveness of neural mobilizations could be identified in the literature. Since this review, several more studies have been published on this subject. The authors hypothesize that a review of the more recent literature (2008-2014) may confirm positive support for the use of neural mobilizations for neuro-musculoskeletal complaints as previously seen by Ellis and Hing. This review aims to include a meta-analysis and subgrouping of conditions which will be an extension of the previous review by Ellis and Hing. The outcomes of this systematic review may be used to inform clinical practice and the development of best practice guidelines.
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Olivier B, Stewart AV, Olorunju SA, McKinon W, 'Static and dynamic balance ability, lumbo-pelvic movement control and injury incidence in cricket pace bowlers'
Journal of Science and Medicine in Sport 18 (1) (2015) pp.19-25
ISSN: 1440-2440 eISSN: 1878-1861AbstractOBJECTIVES: This study aimed to establish the difference in lumbo-pelvic movement control, static and dynamic balance at the start and at the end of a cricket season in pace bowlers who sustained an injury during the season and those who did not. DESIGN: This is a longitudinal, observational study. METHODS: Thirty-two, healthy, injury free, male premier league fast, fast-medium and medium pace bowlers between the ages of 18 and 26 years (mean age 21.8 years, standard deviation 1.8 years) participated in the study. The main outcome measures were injury incidence, lumbo-pelvic movement control, static and dynamic balance ability. RESULTS: Fifty-three percent of the bowlers (n=17) sustained injuries during the reviewed cricket season. Lumbo-pelvic movement control tests could not discriminate between bowlers who sustained an injury during the cricket season and bowlers who did not. However, performance in the single leg balance test (p=0.03; confidence interval 4.74-29.24) and the star excursion balance test (p=0.02; confidence interval 1.28-11.93) as measured at the start of the season was better in bowlers who did not sustain an injury during the season. CONCLUSIONS: The improvement in the lumbo-pelvic movement control and balance tests suggests that the intensity and type of physical conditioning that happens throughout the season may have been responsible for this improvement. Poor performance in the single leg balance test and the star excursion balance test at the start of the cricket season may be an indication that a bowler is at heightened risk of injury.Published here -
Olivier B, Stewart A, Taljaard T, Burger E, Brukner P, Orchard J, Gray J, Botha N, McKinon W, 'Extrinsic and intrinsic factors associated with non-contact injury in adult pace bowlers: a systematic review protocol'
JBI Database of Systematic Reviews and Implementation Reports 13 (1) (2015) pp.3-13
ISSN: 2202-4433 eISSN: 2202-4433AbstractREVIEW QUESTION/OBJECTIVE: Review question: which extrinsic and intrinsic factors are associated with non-contact injury in adult cricket pace bowlers?Review objective: the objective of this review is to determine the extrinsic and intrinsic factors associated with non-contact injury in adult pace bowlers. BACKGROUND: Cricket is generally considered to be a sport of low injury risk compared to other sports. In cricket, the pace bowler strives towards the adoption of a bowling technique with a relatively low injury threat that will, at the same time, allow for a fast (>120km/hr) and accurate delivery to the opposing batsman. However, of all the various roles of the cricket player, the pace bowler has the highest risk of injury, especially for low back and lower limb (lower quarter) injury. The reason for this high risk of injury is due to the inherent, high-load biomechanical nature of the pace bowling action. The high prevalence of injury amongst pace bowlers highlights the great need for research into factors associated with injury.Both extrinsic and intrinsic factors work in combination to predispose the bowler to injury. Extrinsic or environment-related factors include bowling workload (the numbers of overs a bowler bowls), player position (first, second or third change) and time of play (morning or afternoon). A high bowling workload has been linked with a higher risk of injury in pace bowlers. Foster et al. found in an observational study that bowling too many overs in a single spell or bowling too many spells may increase the pace bowler's risk of sustaining a low back injury. In another observational study, Dennis et al. found that an exceptionally high bowling workload as well as an uncommonly low bowling workload is associated with injury risk. The major extrinsic factors for bowling injury identified by Orchard et al. are a high number of match overs bowled in the previous week, number of days of play and bowling second (batting first) in a match. Extrinsic factors are known to make the bowler more susceptible to injury, especially in the presence of intrinsic factors.Intrinsic, or person-related, factors include muscle strength, flexibility, balance and biomechanics. Intrinsic, strength-related factors, such as shoulder depression, horizontal flexion strength for the preferred limb and quadriceps power in the non-preferred limb are also significantly related to back injuries in fast bowlers. Both upper limb and lower limb-related intrinsic factors are known to be associated with injury. A prospective study by Dennis et al. aimed to identify the risk factors for injury in adolescent cricket fast bowlers. Their findings concluded that bowlers with a hip internal rotation range of motion of 40 degrees of rotation. Moreover, bowlers with ankle dorsiflexion lunge of 12.1-14.0 cm on the leg contralateral to the bowling arm were at a significantly increased risk of injury compared to bowlers with a lunge of >14 cm. Reduced hamstring flexibility was also associated with lumbar disc abnormalities. Bowling-related biomechanical risk factors for injury have been established such as trunk rotation of the shoulders by to a more side-on position during the delivery stride. Portus et al. also reported that shoulder counter-rotation was significantly higher in bowlers who reported lumbar spine stress fractures, while the non-trunk injured group displayed a more flexed knee at front foot contact and ball release. In addition to the above kinematic risk factors, there are high ground reaction forces associated with the power phase - between the front foot placement and ball release components of the pace bowling action. A combination of kinematic bowling related issues as described above and high ground reaction forces may predispose the bowler to injury.Morton et al. conducted a systematic review on pace bowlers between the ages of 13.7 and 22.5 years on risk factors and successful interventions for cricket-related low back pain. Young cricketers between the ages of 13 and 18 years are different to adults in terms of their physiology which impacts on their predisposition to injury and phases of healing. Young cricketers may differ from an adult population in that young pace bowlers who sustain injuries during their bowling career may have given up on the sport by the time they approach adulthood, and the composition of the adult pace bowler population group is therefore affected by natural selection which may cause this group to differ from the original population. Caution is thus advised when generalizing findings from this young population group to adult pace bowlers which emphasizes the need for studies amongst adult pace bowlers. Furthermore, the review by Morton et al. included articles that specifically investigated factors associated with low back pain. However, due to the interconnectedness between the spine and the lower limbs, kinematic variables affecting the spine will also affect the load placed on the lower limbs with subsequent risk of injury. The interdependent mechanical interactions in a linked segment system such as the system of motion of the low back can be caused by movement coordination patterns in other body segments. The systematic review by Morton et al. only included intrinsic factors while the proposed review will also look at extrinsic factors. Therefore, the primary objective of this review is to determine extrinsic and intrinsic factors associated with non-contact injury in adult pace bowlers.Published here -
Pearce B, Olivier B, Mtshali S, Becker PJ, 'Gluteus medius kinesio-taping: The effect on torso-pelvic separation, ball flight distance and accuracy during the golf swing'
The South African Journal of Sports Medicine 27 (4) (2015) pp.97-101
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBACKGROUND. The kinesio-taping method, which is becoming increasingly popular, may provide support and stability to joints and muscles without inhibiting range of motion. OBJECTIVE. The aim of the study was to determine the effect of kinesio-taping of the gluteus medius muscle on x-factor (torso-pelvic separation), ball flight distance and accuracy (smash factor ratio). A specific aim was to determine whether a correlation exists between hip abduction strength and x-factor, ball distance and accuracy. METHODS. This study is a one group pretest-posttest quasi-experimental design which took place at a golf facility. Twenty-nine amateur golfers with handicap of scratch ±2, who were between the ages of 18- and 25-years, participated in this study. Biomechanical outcomes were recorded with and without kinesio-tape applied on the gluteus medius muscle of the trail leg. Biomechanical golf swing analysis with the iClub™ Body Motion System determined the x-factor at the top of the backswing. Ball flight distance and accuracy were measured with FlightScope® and dominant hip abduction strength was measured with the MicroFET Hand-held Dynamometer. RESULTS. Kinesio-tape is effective in improving the relative hip abduction strength (p
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Dafkin C, Green A, Kerr S, Raymond A, Veliotes D, Elvin A, Olivier B, McKinon W, 'Kinematic and kinetic analysis of the inter- and intra-applicator assessment of the Babinski reflex'
Clinical Neurophysiology 44 (5) (2014) pp.471-477
ISSN: 1388-2457 eISSN: 1872-8952AbstractAIMS OF THE STUDY: The first aim was to quantify variability in the mechanical technique used by neurologists to elicit the Babinski reflex. The second aim of the study was to assess if the mechanical technique is an important determinant of the subsequent reflex response. MATERIALS AND METHODS: In this study, twelve neurologists elicited the Babinski reflex five times on the same foot of the same participant using a special reflex hammer which recorded the force and duration of the stroke. Hallux movement, tibialis anterior maximum EMG amplitude and pain felt by the participant for each stroke were recorded. RESULTS: A large inter- and intra-applicator variability was shown amongst the neurologists. The change in hallux angle was significantly correlated with the duration of the stroke (R(2)=0.18, P<0.01), maximum (R(2)=0.14, P=0.01) and average (R(2)=0.17, P<0.01) force used to elicit the reflex. No correlations were shown between the hammer forces and duration and the maximum amplitude of the tibialis anterior. Significant correlations were shown between the pain score and the maximum (R(2)=0.15, P<0.01) and average (R(2)=0.17, P=0.001) force used to elicit the Babinski reflex. CONCLUSION: These results indicate that there was substantial variation when performing the Babinski reflex test within and between neurologists which could lead to differences in the resultant reflex and therefore may affect subsequent diagnoses.Published here -
Olivier B, Stewart AV, McKinon W, 'Injury and lumbar reposition sense in cricket pace bowlers in neutral and pace bowling specific body positions'
The Spine Journal 14 (8) (2014) pp.1447-1453
ISSN: 1529-9430 eISSN: 1878-1632AbstractBACKGROUND AND CONTEXT: The cricket pace bowling action consists of a complex sequence of forceful actions, involving practiced, particular movements of the lumbar spine. The nature and repetition of the pace bowling action is known to be associated with a high incidence of low back injuries. PURPOSE: This study aimed to establish whether lumbar proprioception (as measured by joint position sense) in the neutral lumbar spine position as well as lumbar positions corresponding to those at front foot placement and ball release positions of the cricket pace bowling action were related to previous injury and injury sustained during the cricket season under review. Injuries specifically sustained during the bowling action and those specific to the low back were explicitly investigated. STUDY SETTING: Longitudinal study with participants tested at the start and monitored over the duration of a cricket season. PARTICIPANT SAMPLE: Seventeen male cricket pace bowlers between the ages of 18 and 26 years participated in this study. OUTCOME MEASURES: Physiological outcome measures were used. Lumbar position sense was established using electrogoniometry. METHODS: Lumbar reposition error was measured in three positions (neutral lumbar spine, front foot placement, and ball release bowling positions). In each position, lumbar orientation was determined in the sagittal (flexion-extension) and coronal (left-right lateral flexion) planes. Wilcoxon matched-pairs ranks and Kruskal-Wallis tests were used to establish the relationship between variables. RESULTS: Reposition error was associated with general injuries sustained in the past and during the cricket season under review, low back injuries, as well as injuries sustained during the bowling action (p<.05). CONCLUSION: Lumbar position sense, as a measure of proprioception, was related to injury in general, injuries sustained during the bowling action, and, especially, low back injury sustained in the past. Low back injury prevention methods are particularly needed because of the high load nature of the pace bowling action. If the proprioception of the lumbar spine is improved in pace bowlers, their risk of lumbar injury can potentially be reduced.Published here -
Lewis F, Wood W, Olivier B, 'The association between trunk muscle endurance and lumbo-pelvic stability in adolescent low back pain: A cross sectional study'
South African Journal of Physiotherapy 69 (1) (2013)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereDecreased trunk muscle endurance has been identified as a risk factor for adolescent LBP, and poor lumbo-pelvic stability has been found to be associated with LBP in the adult population. The aim of the study was to investigate the association between adolescent LBP, trunk muscle endurance and poor lumbo-pelvic stability. Design: A cross sectional study. Participants: 80 adolescents in grade 8 to grade 11, aged 12 to 17 years, at three high schools in Gauteng, who agreed to participate in the study. Method: Data was collected by means of a validated questionnaire and physical tests. The active straight leg raise test was used to record the lumbo-pelvic stabilising muscles. The Sorensen, Shirado and side-bridge tests were used to record trunk extensor, flexor and side flexor muscle endurance, respectively. Results: The results revealed a lifetime prevalence of LBP of 82.50%, one year prevalence of 78.80% and point prevalence of 23.80%. Adolescents with LBP demonstrated decreased trunk extensor muscle endurance but increased trunk flexor muscle endurance (p=0.044), compared to non-LBP adolescents. Poor lumbo-pelvic stability was not associated with adolescent LBP, but was associated with decreased extensor trunk muscle endurance (p=0.031). Conclusion: There was an association between trunk flexor muscle endurance and adolescent LBP, and between decreased trunk extensor muscle endurance and poor lumbo-pelvic stability. No association was found between LBP and poor lumbo-pelvic stability.
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Olivier B, Stewart AV, McKinon W, 'Side to side asymmetry in absolute and relative muscle thickness of the lateral abdominal wall in cricket pace bowlers'
The South African Journal of Sports Medicine 25 (3) (2013) pp.81-86
ISSN: 1015-5163 eISSN: 2078-516XAbstractPublished hereBackground. The abdominal musculature plays a protective role against lower-back injury. Knowledge of the asymmetry in abdominal wall thickness in healthy, injury-free cricket pace bowlers may provide a useful platform against which pathology could be assessed and the effects of training could be evaluated.
Objective. To compare side-to-side differences in absolute muscle thickness and activity of the abdominal musculature and to compare these measurements at the start, with those at the end of a cricket season among a group of amateur pace bowlers.
Methods. This was a controlled longitudinal prospective study. Rehabilitative ultrasound imaging was used to assess abdominal muscle thickness in 26 right-handed, injury-free cricket pace bowlers at the start and at the end of a cricket season. Thickness measurements were done at rest, during an abdominal drawing-in manoeuvre (ADIM) and the active straight-leg raise (ASLR) on the left (-L) and right (-R).
Results. The absolute thickness of the non-dominant obliquus abdominis internus (OI) was higher than that of the dominant OI at the start (p=0.001; ES=0.87) as well as at the end of the cricket season (p=0.001; ES 1.09). At the start of the season, the percentage change during the ADIM, thus muscle activity, was higher for the non-dominant OI than for the dominant OI (p=0.02; ES=0.51). Absolute thickness of the dominant obliquus abdominis externus (OE) at rest was significantly higher at the end of the season compared with the start of the season (p=0.0001; ES=0.85). During ASLR-R, the activity of the left transversus abdominis (TA) was significantly higher than that of the right TA during ASLR-L (p=0.03) when measured at the end of the season.
Conclusion. This study highlights the possible muscle adaptations in absolute muscle thickness and activity as a consequence of the asymmetrical bowling action. -
Olivier B, Naidoo V, Humphries C, Godlwana L, Romm M, Ntsiea V, Van Aswegen H, Myezwa H, Roos R, Mudzi W, Potterton J, Watt B, Maleka D, Stewart AV, 'Inter-examiner reliability when using the Objective Structured Practical Examination (OSPE) mark sheet for physiotherapy practical examinations'
South African Journal of Physiotherapy 69 (4) (2013)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereThe Objective Structured Practical Examination (OSPE) format is used during practical examinations as part of the physiotherapy undergraduate curriculum at the University of the Witwatersrand. Various factors influence inter-examiner reliability and investigating the inter-examiner reliability when using the OSPE can lead to improvement of the examination process. The aim of this study was to establish inter-examiner reliability when using the OSPE mark sheet. Methods: Twelve examiners participated in this study. Thirty-three second year PT students were examined at six stations and by two examiners at each station. The Spearman’s correlation test was used to establish inter-examiner reliability. Results: The general inter-examiner reliability of the OSPE mark sheet was high. There was a high correlation between examiners who had the same level of experience (r=0.79 to r=0.93; p
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Burger E, Myezwa H, Naidoo V, Olivier B, Rothberg A, 'Low back pain in physiotherapy students: prevalence and the association with neuromuscular findings'
South African Journal of Physiotherapy 69 (4) (2013) pp.29-35
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereBackground: Physiotherapy students are prone to low back pain (LBP) due to studying and their active involvement in clinical treatment of patients. As a result of pathology, muscle activity is influenced, affecting optimal function of the spine. Method: Physiotherapy students enrolled for 2010 at the University of the Witwatersrand participated in a cross-sectional study. A questionnaire and physical assessment were completed. Results: The study revealed that the lifetime LBP prevalence was 36% among physiotherapy students. Associations with LBP were hours of practical exposure, posterior-anterior mobilisations on L4 (p=0.003) and L5 (p≤0.001) centrally and unilaterally, left lumbar multifidus (LM) cross-sectional area (p=0.02), right obliquus internusabdominis (OI) (p=0.02) and right transversus abdominis (TrA) thickness at rest (p=0.02), as well as the pull of the TrA during contraction on the left (p=0.03). Discussion: Hours of practical exposure may play a role in lumbar pathology. Due to pathology, muscle imbalances of LM, TrA and OI affect the stability of the spine which may lead to recurrences. Conclusion: Practical exposure as well as LM, TrA and OI muscle imbalances were associated with LBP in physiotherapy students. Awareness of the factors associated with LBP while studying at an undergraduate level may lead to better prevention of LBP.
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Olivier B, Stewart AV, Green AC, McKinon W, 'Knee joint position sense does not correlate with front knee angles or ball release speed in cricket fast bowlers'
Gazzetta Medica Italiana Archivo per le Scienze Mediche 172 (10) (2013) pp.743-749
ISSN: 0393-3660 eISSN: 1827-1812AbstractAim: The aim of this study was to establish if knee joint position sense in functional and pre-defined angles is related to ball release speed.
Methods: Twenty one healthy male cricket fast bowlers participated in this study. The ability of each bowler to reproduce pre-defined knee angles of 140° and 160° of knee extension was assessed. In addition, in a subsample of 11 bowlers, elecrogoniometery was used to determine the angles of the knee at ball release and at front foot placement. Electrogoniometery was also used to assess the ability of this subsample of subjects to reproduce these bowling specific knee angles. Pearson’s correlation coefficient was used to determine the relationship joint reposition error in these four positions and ball release speed (significance pResults: There was no statistically significant relationship between knee joint reposition error in the pre-defined (n=21) or bowling specific (n=11) knee angles and ball release speed. The ability of bowlers to reposition their knee angles were also not related to the measured knee angles at ball release or front foot placement.
Conclusion: It is likely that static knee joint position sense is not a major predictor of the dynamic knee angle during the bowling action, or of ball release speed in a homogenous group of competitive bowlers. Although other mechanisms, which are known to operate dynamically, may contribute to knee angles and bowling speeds, it is possible that leg specific proprioception does not play a major role in determining knee angles and bowling speeds. -
Quinn S, Olivier B, Wood W, Naidoo V, 'The effect of trigger point therapy and medicine ball exercises vs trigger point therapy and stretching on hip rotational biomechanics of the golf swings'
South African Journal of Physiotherapy (2013) pp.73-79
ISSN: 0379-6175 eISSN: 2410-8219Published here -
Barker BB, Olivier B, 'The accurate assessment and physiotherapeutic treatment of rotator cuff myofascial Pain Syndrome: A case report'
South African Journal of Physiotherapy 67 (3) (2010) pp.31-34
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereManagement of patients with rotator cuff myofascial pain syndrome varies and successful intervention is dependent on accurate assessment. The aim of this case report is to show the importance of accurate assessment and clinical reasoning in the physiotherapeutic management of a patient suffering from ante-cubital and anterior shoulder pain. The patient was referred for physiotherapy after proving refractory to treatment with non-steroidal anti-inflammatory medication. The physiotherapist diagnosed a rotator cuff myofascial pain syndrome and treatment proceeded on that basis. Treatment consisted of twitch-obtaining dry needling, myofascial release and exercise therapy. The result was a change in the harryman rotator cuff functional Assessment Scale score from 22/52 to 43/52 over eight treatments. Strength was regained and subjective pain report on the visual rating scale was improved to 1/10. The case study highlights the importance of accurate assessment and consideration of alternative myofascial sources for pain even in circumstances which initially seem trauma related. Precise diagnosis of the cause - in this case rotator cuff myofascial pain syndrome – will result in effective treatment being administered.
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Olivier B, Mudzi W, Mamabolo MV, Becker PJ, 'The association between psychological stress and low back pain among district hospital employees in Gauteng, South Africa'
South African Journal of Physiotherapy 66 (2) (2010)
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereThe presence of low back pain (LBP) can be influenced by psychosocial stress experienced at work. The aim of this study was to determine the point prevalence for LBP and the psychological stress expe-rienced at work as a factor associated with the presence of LBP amongst staff employed at district hospital in Pretoria, Gauteng, South Africa. A self-administered questionnaire was completed by all participants. Results indicated that the point prevalence for LBP was 47.46%. Sixty five point five seven percent of employees who experienced stress at work all the time, suffered from LBP (p=0.001). Stress experienced at work all the time increased the risk of LBP (OR 3.47 CI 1.46 ; 8.23). A clinical recommendation resulting from this study is that healthcare providers need to include the provision of education, support and appropriate referral for patients who perceive themselves to have high levels of stress.
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Lewis F, Naude (Olivier) B, 'The effectiveness of physiotherapy in cervicogenic headache and concurring temporomandibular dysfunction: a case report '
South African Journal of Physiotherapy 66 (1) (2010) pp.26-31
ISSN: 0379-6175 eISSN: 2410-8219AbstractPublished hereThe aim of this case report is to describe the use of physio-therapy interventions in a patient diagnosed with cervicogenic headache(CGH) and temporomandibular dysfunction (TMD). This case study involveda 26 year old male. The subject’s cervical and temporomandibular joint(TMJ) active range of movement; passive accessory movements; headacheintensity, periodicity and response to analgesics; TMJ clicking and discomfort;Numerical Pain Rating Scale (NPRS) scores, were assessed on initial assessment and on discharge 14 weeks later. The physiotherapy interventionincluded cervical and TMJ mobilisation (Maitland approach); trigger pointtherapy and massage; strengthening of the deep cervical neck flexors and scapulothoracic muscles; and posture correction. The subject improved on all outcome measures and was discharged after nine physiotherapy sessions, withfull cervical and TMJ range of movement, improved muscle strength and decreased headache intensity and frequency.This case describes a positive outcome for a patient diagnosed with cervical headaches and temporomandibular dysfunction in which physiotherapy interventions aimed at correcting joint dysfunction, myofascial pain and decreased muscle strength were used effectively.
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Lewis F, Naude (Olivier) B, 'The effectiveness of physiotherapy in cervicogenic headache and concurring temporomandibular dysfunction: a case report'
South African Journal of Physiotherapy 66 (1) (2010) pp.26-31
ISSN: 0379-6175 eISSN: 2410-8219Published here -
Naude (Olivier) B, Mudzi W, Mamabolo MV, Becker PJ, 'Low back pain among hospital employees in Gauteng, South Africa: Point prevalence and associated factors'
Occupational Health Southern Africa 15 (3) (2009) pp.24-30
ISSN: 1024-6274 eISSN: 2226-6097AbstractPublished hereLow back pain can be infl uenced by demographic, lifestyle and co-morbid factors, but there are few studies on the relationship between these in South African hospital employees. This crosssectional study aimed to determine the point prevalence for low back pain and the factors associated with its presence amongst staff employed at a district hospital in Gauteng, South Africa. A self-administered questionnaire was used. Results indicated a point prevalence of 47.46%. Only female gender was associated with increased risk of low back pain (OR 1.67 CI 1.04 ; 2.69) while for the lifestyle factors, participation in physical activity especially in the form of group exercises was a protective factor (OR 1.66 CI 1.02 ; 2.70). Stress experienced at work all the time increased the risk (OR 3.47 CI 1.46 ; 8.23). Clinical recommendations include special occupational adaptation for females and the incorporation of physical activity, especially group exercise, and stress management strategies into low back pain management programmes.
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Naude (Olivier) B, Mudzi W, Mamabolo MV, Becker PJ, 'Low back pain among hospital employees in Gauteng, South Africa: Point prevalence and associated factors'
Occupational Health Southern Africa 15 (3) (2009) pp.24-30
ISSN: 1024-6274 eISSN: 2226-6097Published here -
Onyancha J, Olivier B, Matheri J, Karuguti W, 'Prevalence, incidence and risk factors for rugby-related injuries: A survey of the Safari Sevens tournament'
South African Journal of Physiotherapy 80 (1)
ISSN: 0379-6175 eISSN: 2410-8219Published here -
Briel S, Brandt C, Olivier B , 'Modifiable Musculoskeletal Factors and their Association with Shoulder Function in Adults: A Systematic Review of Etiology and Risk'
Discover Medicine
ISSN: 3004-8885 eISSN: 3004-8885 -
Candice MacMillan1,2 · Benita Olivier3,4 · Carel Viljoen5 · Dina Christa Janse van Rensburg6 · Nicola Sewry2,7, 'The Association Between Menstrual Cycle Phase, Menstrual Irregularities, Contraceptive Use and Musculoskeletal Injury Among Female Athletes: A Scoping Review'
Sports Medicine 24 pp.2515-2530
ISSN: 0112-1642 eISSN: 1179-2035AbstractPublished here -
Jacobs J, Olivier B, Brandt C , 'Injury profiles in sub-elite women's cricket: exploring incidence, prevalence, nature, onset, and body region'
Physical Therapy in Sport 67
ISSN: 1466-853X eISSN: 1873-1600Published here -
Weinberg M, Olivier B, Kunene S , 'Shoulder girdle muscle activity at rest and during jaw and shoulder movements in participants with and without temporomandibular disorders: a cross-sectional observational study'
Journal of Bodywork and Movement Therapies
ISSN: 1360-8592 eISSN: 1532-9283
Books
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Olivier B, Taljaard T, Keeping the Balance: Enhance Sports Performance and Prevent Injury, Amazon KDP (2017)
ISBN: 9781977033413AbstractPublished hereIf you are looking for ways to improve sports performance and at the same time to prevent injury for yourself or for an athlete in your care, then you are at the right place. All athletes incur injuries from time to time but there are some who seem to suffer recurrent injuries and who are forced to take time off from training on a regular basis. This can be immensely frustrating and we would like for you to be prepared to address these issues sooner rather than later. So, whether you are an athlete, coach, trainer, physical therapist or play any other role in the sporting arena, this book is for you. The major focus of this book is on the assessment of balance based on the Star Excursion Balance Test, although we also touch on how to improve balance. The balance between sports performance and injury is a crucial one. The truth of the matter is that all athletes are out there to perform, within the demands of their chosen sport. Whether it is to blast a football past the opponent’s goalpost, to pitch a baseball to knock the batter out, or to bowl a cricket ball fast and accurately over after over, performance is the number one goal. However, the risk of injury with any sport is real. The likelihood that an athlete would suffer an injury is always hanging in the background, like a little rain cloud, waiting to rain on the most ambitious athlete’s parade. Research has shown that improving an athlete’s balance is a priority in order to enhance performance and prevent injury. It is well known that one of the biggest obstacles in an intervention program for preventing injury is the willingness of the athlete to keep to the exercise program (athlete compliance). A strong motivating factor to encourage an athlete to keep to an exercise program is to work for an improvement in his/her balance, and therefore performance. What better motivational factor could there be than to know that on the completion of a specific exercise program, your balance will improve, which will in turn benefit your sports performance and at the same time prevent injury? Although the focus of this book is on assessing and improving balance in relation to sport, yet the rehabilitation of balance is important in many other respects. Balance plays an important role in the normal activities of daily living and functioning for individuals from all walks of life who participate in various activities at different levels. Even if you want to hike on your holiday or simply walk in the park, but with a limited risk of injury, you will find that the aspects discussed in this book are applicable to you too. Furthermore, improving balance is not applicable to the younger generation only. It also includes older people. In fact, balance training in the elderly has been shown to prevent falls, which present a common challenge and are often a source of injury to the aged. This book covers topics such as what is balance? How do we measure, record and interpret the ability to balance? And how do we improve balance? This book focusses only on the SEBT for a number of reasons. This test is a dynamic test, as opposed to a lot of others, which only test and train static balance. It is a challenging test for athletes and other participants to perform and has been shown to provide the most detailed information on balance instability in the shortest period of time. And last but not least, it has lots of research to back it up. For those with a scientific flame burning inside them, we have added references should you wish to geek out on some of the research. Enjoy and remember to keep the balance!
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Benita is a physiotherapist registered with the Health and Care Professions Council (HCPC) in the United Kingdom and the Health Professions Council of South Africa (HPCSA).
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