South African Journal of Sports Medicine最新文献

{"title":"Case report: Rare case of a traumatic isolated rupture of the conoid ligament","authors":"Janesh Ganda, Stephen Roche, Shaun Scheepers","doi":"10.17159/2078-516x/2024/v36i1a16854","DOIUrl":"https://doi.org/10.17159/2078-516x/2024/v36i1a16854","url":null,"abstract":"Acromioclavicular (AC) joint injuries can involve disruption of the AC and coracoclavicular ligaments. We report a case in aprofessional rugby player of an isolated disruption of the conoid ligament with no injury to the AC and trapezoid  ligaments. A 24-year-old professional rugby player fell onto his outstretched hand, injuring his right shoulder. The  differential diagnosis was an AC joint injury, coracoid fracture, stress fracture of the coracoid process, or subtle clavicle  fracture, which could not be diagnosed on plain film X-ray. An MRI confirmed an isolated rupture of the conoid ligament. No injury to the AC ligament or trapezoid was identified. Five weeks after the injury, the patient returned to full contact training and match play. This case demonstrates that in AC joint injuries, it is possible that the trapezoid ligament and conoid ligament are not simultaneously disrupted, and management is per a Grade II/III AC joint injury.","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":" 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141670113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The relationship between ankle landing kinematics, isokinetic strength, muscle activity, and the prevalence of lower extremity injuries in university-level netball players during a single season","authors":"Thembisile Jolingana-Seoka, H. Hammill, Y. Willemse, M. Kramer","doi":"10.17159/2078-516x/2024/v36i1a16918","DOIUrl":"https://doi.org/10.17159/2078-516x/2024/v36i1a16918","url":null,"abstract":"Background: Safe landing in netball is fundamental. Research on the biomechanics of multidirectional landings is lacking, especially among netball players. Furthermore, few studies reporting the associations between ankle kinematics, isokinetic ankle muscle strength, muscle activities, and injury prevalence in South African netball have been undertaken.\u0000Objectives: To determine the relationships between ankle kinematics, kinetics, isokinetic strength, and muscle activity during jump-landing tasks, as well as the prevalence of lower extremity injuries in university-level netball players during a single season.\u0000Methods: This cross-sectional repeated-measure study consisted of ten university-level female netball players. The injury prevalence data was collected during the 2022 netball season. The ankle muscle activity, kinematic, and kinetic data were collected during multidirectional single-leg landing and muscle strength was collected from plantar- and dorsiflexion trials.\u0000Results: Netball players' ankle strength was generally below average. There was evidence of negative correlations between the ankle range of motion (ROM), isokinetic strength, and muscle activity amplitudes. A lack of evidence prevented the conclusion that lower extremity dominance predisposed players to injury, and that any specific body part was more likely to be injured among netball players.\u0000Conclusion: Landing forces and muscle activity are direction-dependent, especially for the dominant limb. Lower extremity strength and neuromuscular control (NMC) across multiple jump-landing directions should be an area of focus for female netball players.","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":"26 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141109248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The South African Rugby Injury and Illness Surveillance and Prevention Project (SARIISPP): SARU Girls’ Youth Week Injury Surveillance Report 2022","authors":"Lara Paul, C. Readhead, W. Viljoen, M. Lambert","doi":"10.17159/2078-516x/2024/v36i1a18554","DOIUrl":"https://doi.org/10.17159/2078-516x/2024/v36i1a18554","url":null,"abstract":"The content of the report is based on data collected by the SA Rugby Injury and Illness Surveillance and Prevention Project (SARIISPP) steering group.","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":"8 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141119349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development, validation and reliability of a questionnaire to evaluate coaches' and players' perceptions, learning, and resources regarding the ruck in rugby union.","authors":"M Brooks, N Parmar, W Kraak","doi":"10.17159/2078-516X/2024/v36i1a17109","DOIUrl":"10.17159/2078-516X/2024/v36i1a17109","url":null,"abstract":"<p><strong>Background: </strong>The lack of a reliable research tool for assessing the attitudes, behaviours, and learning resources of rugby coaches and players regarding the ruck event is a significant gap in rugby research.</p><p><strong>Objectives: </strong>This study aimed to adapt an existing questionnaire focused on the tackle event and to validate and establish the reliability of the instrument. The questionnaire explores the attitudes, behaviours, and learning resources of rugby coaches and players, with a focus on the ruck event and its impact on coach and player development, as well as coaching practices.</p><p><strong>Methods: </strong>A seven-step design process was followed to validate the questionnaire's content, construct, clarity, and relevance. A panel of 12 experts evaluated the questionnaire, followed by a test-retest procedure involving 15 coaches and 16 players, highlighting the effectiveness of this questionnaire, and emphasising its potential to generate data that can impact the field of rugby coaching and player development.</p><p><strong>Results: </strong>The questionnaire was deemed appropriate and clear by the expert panel, with an average completion time of 22 minutes. Moderate to good agreement was observed among players (ICC Agreement = 0.71) and coaches (ICC Agreement = 0.88), with high response consistency (ICC Consistency = 0.71 for players and 0.87 for coaches). Significant agreement was also found in Kendall's W scores (players = 0.85, coaches = 0.93, p<0.01).</p><p><strong>Conclusion: </strong>This study presents a developed questionnaire noted for its clarity, reliability, and consistency. It serves as a valuable tool for future rugby research, with the potential to impact coach and player development significantly.</p>","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":"36 1","pages":"v36i1a17109"},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11182620/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141421201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of psychological readiness of athletes when returning to sport after injury","authors":"Chandrisha Juggath, Rowena Naidoo","doi":"10.17159/2078-516x/2024/v36i1a16356","DOIUrl":"https://doi.org/10.17159/2078-516x/2024/v36i1a16356","url":null,"abstract":"Background: Injuries are a common occurrence in sports participation; however, they have the potential to be accompanied by negative thoughts and feelings, which may play a part in the athletes’ state of mind when they return to their sport. Assessing the degree to which this occurs provides an opportunity to evaluate and address athletes’ state of mind before their return to play.\u0000Objectives: To determine if athletes are psychologically ready to return to play after an injury and if there are differences in fear avoidance behaviour between those who were and were not ready to return.\u0000Methods: Eighty-eight athletes participated in this descriptive survey. Athletes’ confidence to return to play was measured by the Injury-Psychological Readiness to Return to Play (I-PRRS) questionnaire and their fear avoidance was measured by the Athlete Fear Avoidance Questionnaire (AFAQ).\u0000Results: Fifty injured athletes with a mean age of 23.3±4.0 years old responded to the I-PRRS and the AFAQ questionnaires. The average I-PRRS score was 46.5±9.1 AU. The evidence suggests that 60% of the athletes were not ready to return to sport (41.0±7.5 AU), whereas 40% were ready to return (54.8±3.1 AU). The difference in scores was not significant. The relationship between the AFAQ scores and the I-PRRS score for the ‘ready’ and ‘not ready’ groups was not significant (p=0.066). The mean AFAQ score (26.1±8.6 AU) for the ‘not ready’ group is marginally greater than the mean AFAQ score (21.6±7.5 AU) for the ‘ready’ group. There was a negative correlation between psychological readiness to return to sport and athletic fear avoidance (r =-0.508, p<0.001).\u0000Conclusion: There needs to be a greater utilisation of psychological assessment tools like the Injury-Psychological Readiness to Return to Play (I-PRRS) questionnaire, which can assist the athlete’s support team, who can help identify athletes who are apprehensive about returning to sport after injury.\u0000Keywords: fear avoidance, athlete confidence, psychological assessment tools","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":"506 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139834112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of psychological readiness of athletes when returning to sport after injury","authors":"Chandrisha Juggath, Rowena Naidoo","doi":"10.17159/2078-516x/2024/v36i1a16356","DOIUrl":"https://doi.org/10.17159/2078-516x/2024/v36i1a16356","url":null,"abstract":"Background: Injuries are a common occurrence in sports participation; however, they have the potential to be accompanied by negative thoughts and feelings, which may play a part in the athletes’ state of mind when they return to their sport. Assessing the degree to which this occurs provides an opportunity to evaluate and address athletes’ state of mind before their return to play.\u0000Objectives: To determine if athletes are psychologically ready to return to play after an injury and if there are differences in fear avoidance behaviour between those who were and were not ready to return.\u0000Methods: Eighty-eight athletes participated in this descriptive survey. Athletes’ confidence to return to play was measured by the Injury-Psychological Readiness to Return to Play (I-PRRS) questionnaire and their fear avoidance was measured by the Athlete Fear Avoidance Questionnaire (AFAQ).\u0000Results: Fifty injured athletes with a mean age of 23.3±4.0 years old responded to the I-PRRS and the AFAQ questionnaires. The average I-PRRS score was 46.5±9.1 AU. The evidence suggests that 60% of the athletes were not ready to return to sport (41.0±7.5 AU), whereas 40% were ready to return (54.8±3.1 AU). The difference in scores was not significant. The relationship between the AFAQ scores and the I-PRRS score for the ‘ready’ and ‘not ready’ groups was not significant (p=0.066). The mean AFAQ score (26.1±8.6 AU) for the ‘not ready’ group is marginally greater than the mean AFAQ score (21.6±7.5 AU) for the ‘ready’ group. There was a negative correlation between psychological readiness to return to sport and athletic fear avoidance (r =-0.508, p<0.001).\u0000Conclusion: There needs to be a greater utilisation of psychological assessment tools like the Injury-Psychological Readiness to Return to Play (I-PRRS) questionnaire, which can assist the athlete’s support team, who can help identify athletes who are apprehensive about returning to sport after injury.\u0000Keywords: fear avoidance, athlete confidence, psychological assessment tools","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":"15 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139774385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparing cardiorespiratory fitness and physical activity levels between third- and fifth-year medical students in a South African university","authors":"N. Neophytou, G. Torres, Masixole Faku, Ruvimbo Madoka, Ella Mari, Masana Ndlovu, Enhakkore Bope, Lara Van Heerden, D. Constantinou, M. Phaswana","doi":"10.17159/2078-516x/2024/v36i1a15245","DOIUrl":"https://doi.org/10.17159/2078-516x/2024/v36i1a15245","url":null,"abstract":"Background: Cardiovascular disease (CVD) risk factors such as sedentary behaviour, decreased physical activity (PA), and low cardiorespiratory fitness lead to an increased and accelerated risk of cardiovascular disease and mortality. Medical students tend to adopt sedentary lifestyles due to a demanding curriculum. This may have a negative effect on CVD risk factors and cardiorespiratory fitness levels of medical students.\u0000Objectives: To compare physical activity and cardiorespiratory fitness levels in a cohort of third- and fifth-year undergraduate medical students in a South African university.\u0000Methods: Data from 123 third-year and 139 fifth-year medical students in the Graduate Entry Medical Programme (GEMP) at the Faculty of Health Sciences, University of the Witwatersrand, were collected. Measurements included CVD risk factors, height, weight, blood pressure, waist circumference, cardiorespiratory fitness, physical activity vital signs and pre-participation health screening questionnaires. Descriptive statistics were presented as mean ± standard deviation or median [interquartile range] depending whether the data were normally distributed or not.\u0000Results: Both groups had low cardiorespiratory fitness when compared to norm values (GEMPI VO2 peak was 29.1 ± 5.9 ml.kg-1.min-1 and GEMPIII VO2 peak was 30.0[11.0] ml.kg-1.min-1). Most participants did not meet WHO physical activity requirements (GEMP I: 72%; GEMP III: 78%). There were significant differences in BMI (p=0.046), diastolic blood pressure (p=0.034) and VO2 peak (p=0.00001) between students meeting and not meeting WHO physical activity requirements (p<0.05).\u0000Conclusion: Third- and fifth-year medical students at a South African university fail to meet recommended WHO physical activity levels and are below cardiorespiratory fitness norms. Therefore, medical institutions should promote and implement targeted physical activity interventions to reduce the prevalence of low fitness levels and the associated health hazards among their students.","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":"26 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139609017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cardiorespiratory fitness response to endurance training in athletes post-COVID-19 compared to unaffected athletes.","authors":"C A Haley, G Torres, B Olivier, H Van Aswegen","doi":"10.17159/2078-516X/2024/v36i1a18872","DOIUrl":"10.17159/2078-516X/2024/v36i1a18872","url":null,"abstract":"<p><strong>Background: </strong>Endurance sports primarily attract recreational athletes over 35 years, who impose an exceptionally rigorous and sustained demand on their cardiorespiratory systems.</p><p><strong>Objectives: </strong>This study aimed to determine the influence of COVID-19 on the cardiovascular, pulmonary, and skeletal muscle function of endurance athletes with exercise intolerance. Secondly, it aimed to compare the exercise response of endurance athletes post-COVID-19 to those unaffected using cardiopulmonary exercise test-related variables.</p><p><strong>Methods: </strong>This is a prospective observational cohort study of endurance athletes. An exposure group with protracted exercise tolerance underwent a resting lung function test and maximal cardiopulmonary exercise test. These were repeated after eight weeks of endurance training and compared to the published reference values and a control group of athletes unaffected by COVID-19.</p><p><strong>Results: </strong>The post-COVID-19 exposure group (n=57), mean age 44.5±8.1years showed a poorer ventilatory threshold (p=0.004), and workload (p=0.05), with higher respiratory exchange ratio (p=0.05) than the control group (n=34), mean age 41.8±7.7 years. Maximal inspiratory pressure improved at follow-up in the COVID-19 group compared to the controls (p=0.03). Increased odds of pulmonary and skeletal muscle limitation to aerobic capacity were found in the COVID-19 group. The COVID-19 group responded positively to endurance training with improved VO₂peak (p=0.005), maximal inspiratory pressure (p=0.04), oxygenpulse (p=0.02), and maximal workload (p<0.001).</p><p><strong>Conclusion: </strong>COVID-19 has led to pulmonary and extrapulmonary limitations to exercise capacity. Tailored intensity and duration of physical activity are vital after COVID-19 to restore skeletal muscle health. This multidisciplinary rehabilitation approach will optimise the resumption of participation in long-distance events.</p>","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":"36 1","pages":"v36i1a18872"},"PeriodicalIF":0.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11629943/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Navigating the AI Innovation: A Publisher's Balancing Act with Fundamental Principles","authors":"M. Lambert","doi":"10.17159/2078-516x/2024/v36i1a17574","DOIUrl":"https://doi.org/10.17159/2078-516x/2024/v36i1a17574","url":null,"abstract":"No abstract ","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":" 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139623012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparative analysis of physical fitness characteristics and rugby-specific game skills of schoolboy players by playing standards: Implications for talent identification programs in resource-constrained settings.","authors":"M Chiwaridzo, T Mudawarima, T W Shumba, G D Ferguson, B C Smits-Engelsman","doi":"10.17159/2078-516X/2024/v36i1a18525","DOIUrl":"10.17159/2078-516X/2024/v36i1a18525","url":null,"abstract":"<p><strong>Background: </strong>Rugby has not grown extensively in Africa compared to other continents, necessitating talent identification (TID) programs to recruit junior talent. However, it is unclear which physical characteristics and rugby-specific game skills to base the objective recruitment of potentially talented young players.</p><p><strong>Objectives: </strong>This study profiled the physical fitness characteristics and rugby-specific game skills of schoolboy rugby players by playing standards to identify variables differentiating elite from sub-elite players from Under 16 (U16) to U19 age categories. The study further compared Zimbabwean cohort data with similar data from international/regional countries.</p><p><strong>Methods: </strong>A cross-sectional design was utilised with 158 Zimbabwean schoolboy players playing competitive (elite) and noncompetitive (sub-elite) rugby. The participants were measured for anthropometrics, speed, agility, upper-and-lower-muscular strength/power, muscle flexibility, prolonged high-intensity intermittent running ability, repeated high-intensity exercise performance ability, tackling, passing, and catching abilities.</p><p><strong>Results: </strong>For U16s, Vertical Jump (VJ), 2kg Medicine Ball Chest Throw (2kg MBCT), Wall-Sit-Leg Strength (WSLS), Yo-Yo Intermittent Recovery Level 1 (Yo-Yo IRL1), Tackling and Catching Ability tests discriminated elite from sub-elite players. Among U19s, the following tests differentiated elite from sub-elite players: VJ, 2kg MBCT, WSLS, 20-m/40-m linear speed, 60-s Push Up, One-Repetition Maximum Back Squat (IRM BS), 1RM Bench Press (BP), Repeated High-Intensity Exercise (RHIE), Tackling and Passing Ability. Elite Zimbabwean schoolboy rugby players were significantly leaner, slower, and \"weaker\" than their international/regional counterparts.</p><p><strong>Conclusion: </strong>The results suggest important physical fitness characteristics and rugby-specific game skills for future identification of potentially talented players at U16/U19 categories.</p>","PeriodicalId":31065,"journal":{"name":"South African Journal of Sports Medicine","volume":"36 1","pages":"v36i1a18525"},"PeriodicalIF":0.0,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11629942/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}