BMJ Open Sport & Exercise Medicine最新文献

{"title":"Types, frequencies and burden of health problems in elite luge athletes: a 46-week prospective cohort study.","authors":"Sarah Christina Tomaselli, Rohit Arora, Elias Mühlbacher, Armin Runer, Friedemann Schneider","doi":"10.1136/bmjsem-2024-002055","DOIUrl":"10.1136/bmjsem-2024-002055","url":null,"abstract":"<p><strong>Background: </strong>There is a research gap in the survey of injuries and illnesses in the sport of luge.</p><p><strong>Objective: </strong>To analyse the type, frequency and burden of injuries and illnesses that occurred over a preparation period and a competition period in elite luge athletes.</p><p><strong>Methods: </strong>In total 40 elite luge athletes, who were all part of a national team and competed internationally, self-reported acute injuries, overuse injuries and illnesses weekly using the Oslo Sports Trauma Research Centre Questionnaire on Health Problems.</p><p><strong>Results: </strong>The most frequently stated health problems were illnesses with 41.9% (n=75), followed by acute injuries at 31.9% (n=57). Overuse injuries accounted for 24.0% (n=43). Illnesses represented the greatest burden with a median severity score of 60.0 (IQR: 23.63), followed by acute injuries with 42.0 (IQR: 26.83) and overuse injuries with 35.0 (IQR: 23.95). In the case of acute injuries, the anatomical regions most affected were the hand (n=8, 14.0 %), foot (n=8, 14.0 %), head (n=7, 12.3 %) and neck (n=6, 10.5 %). In the case of overuse injuries, the shoulder (n=9, 20.9 %) and lumbar spine (n=7, 16.3 %) were most frequently reported. Strains (n=15, 26.3 %) and contusions (n=14, 24.6 %) were the predominant types of acute injuries. Four concussions were recorded, with none of the athletes taking a break from normal training of more than 3 days. This stands in contrast to the current recommendations for the return to sport after concussion.</p><p><strong>Conclusion: </strong>The results of this study represent the current incidence rates and health burden of acute and chronic injuries in this constantly evolving sport. 95% of all athletes reported at least one health problem during the observation period. These findings support the need for specific prevention programmes. The establishment of a concussion protocol should be considered.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 4","pages":"e002055"},"PeriodicalIF":3.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11448180/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142382026","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":"SoccHealth: a health status examination of former professional football (soccer) players within the German National Cohort.","authors":"Klaus Berger, Hansjoerg Baurecht, Michael Stein, Jana-Kristin Heise, Stefanie Castell, Linda Weisser, Tamara Schikowski, Kuss Oliver, Wolfgang Lieb, Rafael Micolajczyk, Alexander Kluttig, Börge Schmitt, Andreas Stang, Tobias Pischon, Annette Peters, Hermann Brenner, Michael Leitzmann, Lilian Krist, Thomas Keil, André Karch, Tim Meyer","doi":"10.1136/bmjsem-2024-002228","DOIUrl":"10.1136/bmjsem-2024-002228","url":null,"abstract":"<p><p>The long-term health effects of football (soccer) have received significant attention in recent years. While brain health is currently the focus of this interest, potential long-term risks or benefits related to cardiovascular and metabolic diseases and cancer are also of interest to sports medicine professionals. However, studies assessing the overall health risks for professional football players remain scarce. We introduce 'SoccHealth', a satellite project to the German National Cohort (NAKO), Germany's largest population-based cohort study. SoccHealth examined 348 former professional football players aged 40-69 using the infrastructure and comprehensive examination programme of NAKO. The German Statutory Accidental Insurance for Professional Athletes identified and invited male players, while female players were recruited among former national team members. Details of the examination programme and the sociodemographic and career-related characteristics of the participants are described. The identical examination programme for the NAKO participants provides the opportunity to draw general population controls according to various definitions and focus on the respective research question to be analysed. This report delineates one approach to evaluate the long-term health effects of football across a broad range of diseases.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 4","pages":"e002228"},"PeriodicalIF":3.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11448189/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142382025","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":"Mass media guidelines for sports concussion: a scoping review protocol.","authors":"Karen A Sullivan, Keeley Lappin, Kannan Singaravelu Jaganathan, Catherine Haden","doi":"10.1136/bmjsem-2024-002202","DOIUrl":"10.1136/bmjsem-2024-002202","url":null,"abstract":"<p><p>Sports concussion is a common and costly injury, and increased public injury awareness could help reduce costs. Many factors, including public messages about sports concussion by the sports media, shape public injury awareness. Empirical analyses show that this messaging can be poor. The proposed solutions include providing media guidance, but little is known about this topic. This scoping review will enable a systematic search and synthesis of guidance materials for improved health messaging of sports concussion by the mass media. The five review stages are (1) determining the research question, (2) identifying relevant materials, (3) selecting relevant information, (4) data extraction and (5) analysis and presentation of the results. A brief protocol will be registered on a recommended platform (Open Science Framework). The search strategy will access 20 databases, as well as Google and Google Scholar, and include hand searching. Selected materials must describe or provide mass media guidance for sports concussion by a health-affiliated authority. Eligibility will be confirmed via a two-stage screening process, including independent assessment. Data from eligible materials will be extracted and collated in tables. If sufficient or appropriate materials are identified, the synthesis will draw on key evaluative resources related to injury management and guideline development methodologies. The knowledge synthesis will use descriptive and narrative methods to determine what is known on this topic, including documenting existing guidance (content and properties) and using the extracted data to inform recommendations for future guidance.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 4","pages":"e002202"},"PeriodicalIF":3.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11448112/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142382024","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":"Energy availability and its association with health-related outcomes among national athletes at risk of relative energy deficiency in sports (REDs).","authors":"Muhammad Irfan Haiqal Marzuki, Nor Aini Jamil, Mohd Izham Mohamad, Wen Jin Chai, Nor Mf Farah, Nik Shanita Safii, Jasmiza Khuzairi Jasme","doi":"10.1136/bmjsem-2024-002193","DOIUrl":"10.1136/bmjsem-2024-002193","url":null,"abstract":"<p><strong>Abstract: </strong></p><p><strong>Background: </strong>Low energy availability (LEA) occurs when athletes' energy intake fails to match the energy expended during exercise, resulting in insufficient energy to support essential functions for optimal health, a condition known as relative energy deficiency in sports (REDs).</p><p><strong>Objective: </strong>This study aims to explore the prevalence of LEA among Malaysian national athletes and its associations with health-related outcomes.</p><p><strong>Methods: </strong>A total of 43 athletes (51.2% males, aged 18-40) identified previously as having moderate or high risk of REDs through a questionnaire underwent comprehensive clinical assessments. Resting metabolic rate (RMR) was measured using indirect calorimetry, with an RMR ratio of <0.90 indicating LEA. Weight and height were measured, and fasting blood samples were analysed for ferritin, free triiodothyronine (fT3), follicle-stimulating hormone (FSH), luteinising hormone (LH), estradiol (female athletes) and testosterone (male athletes). Bone mineral density (BMD) of the lumbar spine and total left hip, as well as body composition, were measured using dual-energy X-ray absorptiometry (DXA).</p><p><strong>Results: </strong>Out of the 43 athletes, 12 showed evidence of LEA, exhibiting at least one of the following characteristics: low estradiol levels (87.5%), low testosterone (75.0%), low fT3 (66.7%), low LH (58.3%), low FSH (58.3%), low ferritin (25.0%) and low BMD (8.3%). Notably, fT3, estradiol and testosterone were significant predictors for LEA.</p><p><strong>Conclusions: </strong>A low but noteworthy incidence of LEA among Malaysian national athletes was associated with hormone imbalances. Awareness about LEA among athletes and sports personnel is essential for early detection and appropriate intervention.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 4","pages":"e002193"},"PeriodicalIF":3.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11448153/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142382012","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":"Artistic gymnastics-specific extension of the IOC 2020 consensus statement: methods for recording and reporting of epidemiological data on injury and illness in sport.","authors":"Ellen Casey, Tejal Sarika Patel, Joao Francisco Almedia, Jay Binder, Jonathan Bucke, Kenneth Duffy, Marcia Faustin, Yasunobu Iwasaki, David Kruse, Jason Laird, Torrance Laury, J F Mathieu, Josh Rigg, Chris Tomlinson, Cheryl Thomas, Keith A Stokes","doi":"10.1136/bmjsem-2024-002040","DOIUrl":"10.1136/bmjsem-2024-002040","url":null,"abstract":"<p><p>The incidence of injuries reported in artistic gymnastics varies greatly. This is partly due to inconsistencies in defining and reporting injuries in artistic gymnastics. The objective was to develop consistent definitions and methodology for reporting injuries in artistic gymnastics. A group of medical practitioners working with international-level artistic gymnasts from America, Asia, Australia and Europe came to a consensus on recommendations for defining and reporting injuries in artistic gymnastics. Development of the consensus statement was achieved through in-person and online discussions, online surveys and post meeting electronic discussions. This consensus statement is meant to serve as an extension to the recommendations made by the IOC on injury surveillance. The statement includes specific recommendations of injury definitions, characterising activity at the time of injury, and describing injury burden in artistic gymnastics. The following consensus statement has been developed to encourage consistency of injury surveillance in artistic gymnastics. Reporting injury in a consistent manner will help understand the true burden of injury in artistic gymnastics and help guide future work in injury prevention.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 4","pages":"e002040"},"PeriodicalIF":3.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11448185/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142382010","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":"'Their role has a lot of purpose beyond being just being about exercises': a qualitative study of patients' experiences of physiotherapy following a mild traumatic brain injury.","authors":"Jason Chua, Duncan Reid, Sierra Keung, Sam Jewell, Olivia Deadman, Alice Theadom","doi":"10.1136/bmjsem-2024-002027","DOIUrl":"10.1136/bmjsem-2024-002027","url":null,"abstract":"<p><p>Following a mild traumatic brain injury (mTBI; also known as concussion), physiotherapists may be involved in injury identification, assessment and rehabilitation. However, how people perceive and experience the physiotherapist's role is not well understood. Semistructured interviews were undertaken with patients who saw a physiotherapist individually or as part of a multidisciplinary team following mTBI in New Zealand. Interviews were recorded, transcribed verbatim and analysed using the interpretive descriptive approach. A total of 12 interviews were held with participants aged 19-67 (50% female; mean age 37 (SD=14.8) years) who had a mTBI on average 9 (SD=8) months ago. Thematic coding of interviews generated four themes, each supported by three to five categories representing their experiences: (1) 'How physiotherapy could help me'-representing how the interventions were delivered; (2) 'Empower me to manage my mTBI'-representing participants learnings to self-manage; (3) 'Set me up to get the most out of treatment'-representing considerations needed before, during and after practice to maximise engagement and (4) 'Get to know me and what's important to me'-representing the importance of considering the person as a whole, and preferences for assessment, intervention, communication and culture throughout service delivery. Overall, participants reported variable mTBI care experiences yet perceived the physiotherapist as having a key role in supporting self-management and treating headaches, neck pain and balance issues. mTBI physiotherapy care needs to be more attuned to patients' preferences and circumstances and delivered in a way that maximises rehabilitation outcomes. Building effective therapeutic connections with patients may be key to addressing these concerns simultaneously in practice.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 3","pages":"e002027"},"PeriodicalIF":3.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11448149/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142373177","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":"Prospective cohort study identifying risk factors for sports injuries in adolescent athletes: the Healthy Injury-Free Adolescent Athletes (HIFAA) study.","authors":"Ida Lindman, Sofia Ryman Augustsson, Adad Baranto, Mikael Sansone, Josefin Abrahamson","doi":"10.1136/bmjsem-2024-002253","DOIUrl":"10.1136/bmjsem-2024-002253","url":null,"abstract":"<p><p>A high incidence of injuries has been reported in young athletes. Several factors have been associated with athletes' sports injuries. However, scientific evidence is lacking, particularly for adolescent athletes. Hence, the Healthy Injury-Free Adolescent Athletes (HIFAA) was designed to evaluate sports injuries and examine associations with risk factors related to physical load and mental health. Secondary aims are to evaluate differences between sex, age, high school year and sports and examine injuries and the athletic situation 5 to 10 years after graduation. Adolescent athletes aged 15-19 years enrolled in high school and competing in sports to reach a national or international level of sports will be included. At inclusion, athletes will sign an informed consent form and fill out a baseline questionnaire addressing potential risk factors (eg, sports, training and competing health and injuries, and psychosocial status). Athletes will then prospectively be monitored weekly regarding injuries, physical (training/match/competing, perceived exertion) and psychological (fatigue, sleep, mental stress, recovery) load until graduation. A shortened version of the baseline questionnaire will be filled out every year, and a follow-up questionnaire regarding injuries, sporting situations and mental health will be filled out 5-10 years after graduation. Injuries are frequent among adolescent athletes, with consequences ranging from shorter interruptions in sports performance to mental health problems and early termination of sports. A reduction of these injuries is warranted. This study will provide a detailed understanding of risk factors, a prerequisite to introducing appropriate preventive measures.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 3","pages":"e002253"},"PeriodicalIF":3.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11448227/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142373176","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":"Ways to improve the methodology of meta-analysis in sports and exercise medicine: what do we often see in peer review?","authors":"Patrick J Owen, Ishtiaq Ahmed, Aamir Raoof Memon, Nash Anderson, Evert Verhagen, Niamh L Mundell, Daniel L Belavy","doi":"10.1136/bmjsem-2024-002256","DOIUrl":"10.1136/bmjsem-2024-002256","url":null,"abstract":"","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 3","pages":"e002256"},"PeriodicalIF":3.9,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440216/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142336893","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":"Systematic video analysis of ACL injuries in professional Spanish male football (soccer): injury mechanisms, situational patterns, biomechanics and neurocognitive errors - a study on 115 consecutive cases.","authors":"Matthew Buckthorpe, Luca Pirli Capitani, Jesus Olivares-Jabalera, Jesus Olmo, Francesco Della Villa","doi":"10.1136/bmjsem-2024-002149","DOIUrl":"10.1136/bmjsem-2024-002149","url":null,"abstract":"<p><strong>Objective: </strong>A few video analysis studies have been published in recent years, but none specifically on Spanish football. We aimed to describe the mechanisms, situational patterns, biomechanics and neurocognitive errors related to anterior cruciate ligament (ACL) injuries in professional Spanish football matches.</p><p><strong>Methods: </strong>We identified 167 consecutive ACL injuries across 12 seasons of the top two leagues in Spanish football. 115 (69%) injury videos were analysed for mechanism and situational pattern, while biomechanical analysis was possible in 81 cases. Neurocognitive errors were investigated for all non-contact injuries. Three independent reviewers evaluated each video. ACL injury epidemiology-month, timing within the match and pitch location at the time of injury was also documented.</p><p><strong>Results: </strong>More injuries occurred in defensive (n=68, 59%) than offensive (n=48, 41%) (p<0.01) playing situations. 16 (14%) injuries were direct contact, 49 (43%) indirect contact and 50 (43%) non-contact. Most injuries (89%) occurred during four main situational patterns: (1) pressing/tackling (n=47, 47%); (2) tackled (n=23, 23%); (3) landing from a jump (n=12, 12%) and regaining balance after kicking (n=6, 6%). Injuries generally involved a knee-dominant loading strategy in the sagittal plane with abducted hip and knee valgus. Of the non-contact injuries, 39 (78%) were deemed to involve a neurocognitive error. More (58%) injuries occurred in the first half of matches (p<0.01).</p><p><strong>Conclusions: </strong>ACL injuries in Spanish football occurred similarly with non-contact and indirect contact mechanisms (44%). Four in five non-contact injuries involved a neurocognitive error. Most injuries occurred during four previously identified situational patterns, with more injuries earlier in the match.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 3","pages":"e002149"},"PeriodicalIF":3.9,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11440205/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142336892","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":"Influence of vitamin D supplementation on muscle strength and exercise capacity in Mongolian schoolchildren: secondary outcomes from a randomised controlled trial.","authors":"Davaasambuu Ganmaa, Stephanie Hemmings, David A Jolliffe, Uyanga Buyanjargal, Gantsetseg Garmaa, Unaganshagai Adiya, Tumenulzii Tumurbaatar, Khulan Dorjnamjil, Enkhtsetseg Tserenkhuu, Sumiya Erdenenbaatar, Enkhjargal Tsendjav, Nomin Enkhamgalan, Chuluun-Erdene Achtai, Yagaantsetseg Talhaasuren, Tuya Byambasuren, Erdenetuya Ganbaatar, Erkhembulgan Purevdorj, Adrian R Martineau","doi":"10.1136/bmjsem-2024-002018","DOIUrl":"10.1136/bmjsem-2024-002018","url":null,"abstract":"<p><strong>Objective: </strong>To determine whether weekly oral vitamin D supplementation influences grip strength, explosive leg power, cardiorespiratory fitness or spirometric lung volumes in Mongolian schoolchildren.</p><p><strong>Methods: </strong>Multicentre, randomised, placebo-controlled clinical trial conducted in children aged 6-13 years at baseline attending 18 schools in Ulaanbaatar. The intervention was weekly oral doses of 14 000 IU vitamin D₃ (n=4418) or placebo (n=4433) for 3 years. Outcome measures were grip strength, standing long jump distance and serum 25-hydroxyvitamin D (25(OH)D) concentrations (determined in all participants), peak oxygen uptake (VO_2peak, determined in a subset of 632 participants using 20 m multistage shuttle run tests) and spirometric outcomes (determined in a subset of 1343 participants).</p><p><strong>Results: </strong>99.8% of participants had serum 25(OH)D concentrations <75 nmol/L at baseline, and mean end-study 25(OH)D concentrations in children randomised to vitamin D versus placebo were 77.4 vs 26.7 nmol/L (mean difference 50.7 nmol/L, 95% CI 49.7 to 51.4). However, vitamin D supplementation did not influence mean grip strength, standing long jump distance, VO_2peak, spirometric lung volumes or peak expiratory flow rate, either overall or within subgroups defined by sex, baseline 25(OH)D concentration <25 vs ≥25 nmol/L or calcium intake <500 vs ≥500 mg/day.</p><p><strong>Conclusion: </strong>A 3-year course of weekly oral supplementation with 14 000 IU vitamin D₃ elevated serum 25(OH)D concentrations in Mongolian schoolchildren with a high baseline prevalence of vitamin D deficiency. However, this intervention did not influence grip strength, explosive leg power, peak oxygen uptake or spirometric lung volumes, either overall or in subgroup analyses.</p><p><strong>Trial registration number: </strong>NCT02276755.</p>","PeriodicalId":47417,"journal":{"name":"BMJ Open Sport & Exercise Medicine","volume":"10 3","pages":"e002018"},"PeriodicalIF":3.9,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11429264/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142336890","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}