British Journal of Sports Medicine最新文献

{"title":"Infographic. Questioning the rules of engagement: a critical analysis of the use of limb symmetry index for safe return to sport after anterior cruciate ligament reconstruction","authors":"Rebecca Hamrin Senorski, Ramana Piussi, Axel Sundberg, Johan Högberg, Carl Senorski, Roland Thomeé, Kristian Samuelsson, Francesco Della Villa, Eric Hamrin Senorski","doi":"10.1136/bjsports-2025-110284","DOIUrl":"https://doi.org/10.1136/bjsports-2025-110284","url":null,"abstract":"For clinicians to return athletes safely to sport, that is, with minimal risk for second anterior cruciate ligament (ACL) injury, a series of muscle function tests are typically administered prior to clearance for return to sport (RTS). Muscle function tests can include muscle strength for knee extension and flexion and hop performance, all important in sports participation.1 Results from muscle function tests are commonly presented as limb symmetry index (LSI), that is, the ratio of results between injured and uninjured limbs expressed as a percentage of symmetry. The recommended cut-off is LSI ≥90% across a battery of tests before an athlete is determined ‘ready’ for RTS.2 To date, it is unclear …","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":"52 1","pages":""},"PeriodicalIF":18.4,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144594155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How much running is too much? Identifying high-risk running sessions in a 5200-person cohort study","authors":"Jesper Schuster Brandt Frandsen, Adam Hulme, Erik Thorlund Parner, Merete Møller, Ida Lindman, Josefin Abrahamson, Nina Sjørup Simonsen, Julie Sandell Jacobsen, Daniel Ramskov, Sebastian Skejø, Laurent Malisoux, Michael Lejbach Bertelsen, Rasmus Oestergaard Nielsen","doi":"10.1136/bjsports-2024-109380","DOIUrl":"https://doi.org/10.1136/bjsports-2024-109380","url":null,"abstract":"Objectives We explored whether a spike in running distance during a single session or over 1 week, compared with the preceding period, was associated with increased risk of running-related overuse injury. Methods Adult runners were recruited for an 18-month cohort study. Three training-related exposures were defined based on a relative change in running distance, using data collected via Garmin devices: (1) session-specific running distance relative to the longest distance run in the past 30 days; (2) 1-week period relative to the preceding 3 weeks using the acute:chronic workload ratio (ACWR); (3) 1-week period using a week-to-week ratio. Runners were categorised into one of four time-varying states: (1) regression, or up to 10% increase (reference); (2) ‘small spike’ between >10% and 30% increase; (3) ‘moderate spike’ between >30% and 100% increase; and (4) ‘large spike’ >100% increase. Outcome was self-reported overuse running-related injury. A multistate Cox regression model was used to estimate adjusted hazard rate ratios (HRR). Results Among 5205 runners (mean age 45.8 years, SD=10.4; 22% female), a total of 1820 (35%) sustained a running-related injury during 588 071 sessions. Significantly increased rates were identified for small spikes (HRR=1.64 (95% CI: 1.31 to 2.05, p=0.01)), moderate spikes (HRR=1.52 (95% CI: 1.16 to 2.00, p<0.01)) and large spikes (HRR=2.28 (95% CI: 1.50 to 3.48, p<0.01)) in single-session running distance. A negative dose-response relationship was observed for the ACWR. No relationship was identified for the week-to-week ratio. Conclusion A significant increase in the rate of running-related overuse injury was found when the distance of a single running session exceeded 10% of the longest run undertaken in the last 30 days. According to the informed consent, no data can be shared outside Aarhus University.","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":"73 1","pages":""},"PeriodicalIF":18.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144568752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Resistance training in pregnancy: systematic review and meta-analysis of pregnancy, delivery, fetal and pelvic floor outcomes and call to action.","authors":"Christina Prevett, Jessica Gingerich, Allison Sivak, Margie H Davenport","doi":"10.1136/bjsports-2024-109123","DOIUrl":"https://doi.org/10.1136/bjsports-2024-109123","url":null,"abstract":"<p><strong>Objective: </strong>Resistance training (RT) has wide-ranging health benefits that may extend to pregnancy. This systematic review aimed to evaluate the influence of RT as a sole intervention or as part of a multicomponent exercise programme on pregnancy, delivery, fetal and pelvic floor outcomes.</p><p><strong>Design: </strong>A systematic review and meta-analysis were performed. Risk of bias was performed using the Johanna Briggs Institute risk of bias tool.</p><p><strong>Data sources: </strong>Six databases were searched from inception to 15 March 2024.</p><p><strong>Eligibility criteria: </strong>Studies were eligible for inclusion if pregnant individuals performed a RT intervention of any intensity, compared with usual care or a non-RT intervention. Outcomes included pregnancy outcomes (rates of gestational hypertension, pre-eclampsia, gestational diabetes and perinatal mood disorders), delivery outcomes (rates of caesarean section, perineal tearing, instrumented delivery and length of labour), fetal outcomes (birth mass, microsomia, macrosomia and gestational age) and rates of pelvic floor disorders.</p><p><strong>Results: </strong>Overall, 50 studies (47 619 participants) from 14 countries were included in this review. There were 45 randomised controlled trials, 3 non-randomised interventions and 2 observational studies. Sixteen studies were considered low risk of bias, 27 studies were of moderate risk of bias and seven were classified as high risk of bias. Ninety per cent of studies were multicomponent programmes, and the dosage of RT interventions was generally low-to-moderate. Reporting of RT prescription, progression and use of appropriate loading guidance was poor. RT was associated with a reduction in the odds of gestational hypertension (OR 0.42, 95% CI 0.27 to 0.66; I²=0%), gestational diabetes (OR 0.62, 95% CI 0.48 to 0.79; I²=0%), perinatal mood disorders (OR 0.48, 95% CI 0.32 to 0.73; I²=0%) and macrosomia (OR 0.67, 95% CI 0.50 to 0.88; I²=23%) compared with control groups.</p><p><strong>Conclusions: </strong>RT, alone or as part of a multicomponent intervention, has significant health benefits during pregnancy. As the majority of interventions are multicomponent, and the aerobic programmes are more appropriately dosed, understanding the impact of RT on the pregnant person is challenging, and studies using currently accepted RT guidelines for exercise dosage and progression are needed.</p>","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":11.6,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144559261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Egg freezing: expanding family-planning options for the elite female athlete.","authors":"Sherilyn DeStefano, Margie H Davenport","doi":"10.1136/bjsports-2025-109697","DOIUrl":"https://doi.org/10.1136/bjsports-2025-109697","url":null,"abstract":"","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":" ","pages":""},"PeriodicalIF":11.6,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144559260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Returning women to sport and exercise: overcoming challenges across life stages","authors":"Christopher James Holland, Kirsten Wing, Hollie Charles, Ashley Jones","doi":"10.1136/bjsports-2025-110308","DOIUrl":"https://doi.org/10.1136/bjsports-2025-110308","url":null,"abstract":"Sport, exercise and physical activity are vital for women’s health and well-being, yet returning to these activities following injury, postpartum and through ageing can be challenging.1–3 There has been an ongoing fight for women to be treated the same as men, including the battle for equal pay, respect, access and media coverage. However, there is a growing demand, fuelled by an increase in the understanding of the psychological, sociological and physiological characteristics of women, to acknowledge gender differences, so that women can be more effectively supported, and disparities in physical activity between genders can be mitigated. As the popularity of women’s sport increases, the incidence of injury has become more apparent. In sex comparable sports, female injury rates are significantly higher than their male counterparts.4 5 There is still a lack of understanding of the causes of increased injury rates in female athletes, although some have argued that these injury risk calculations may …","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":"38 1","pages":""},"PeriodicalIF":18.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144312208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From participation to prevention – the expanding role of physical activity in lifelong health","authors":"Erika Rees-Punia, Kate N Jochimsen","doi":"10.1136/bjsports-2025-110341","DOIUrl":"https://doi.org/10.1136/bjsports-2025-110341","url":null,"abstract":"This edition of BJSM focuses on physical activity across the continuum: from promotion and participation to its role in disease prevention. Here, we consider physical inactivity as a risk factor for various physical and mental health outcomes, and we also think of physical activity as an outcome itself. There are multiple ways we can examine physical inactivity and promote physical activity throughout the lifespan. We can ‘zoom in’ to develop comprehensive, personalised approaches that target individual-level barriers to physical activity. Alternatively, we can ‘zoom out’ to analyse broader trends and system-level factors influencing physical activity engagement across diverse communities, varying disease states and subpopulations. Throughout this issue, you will read from author teams taking both approaches with the same goal—helping us remain active so that we may thrive throughout every stage of life. The health benefits of exercise are well documented, yet population-level participation in physical activity remains low across all stages of life. The infographic by Li et al challenges us to think about access and inclusivity in the promotion of physical activity in children and adolescents with disabilities (see page 1021) . The authors make many suggestions, including increasing the time children and adolescents spend moving their …","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":"25 1","pages":""},"PeriodicalIF":18.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"'The right advice': a qualitative study examining enablers and barriers to recreational running and beliefs about knee health following knee surgery.","authors":"James L N Alexander, Allison M Ezzat, Adam G Culvenor, Danilo De Oliveira Silva, Melissa Haberfield, Jean-François Esculier, Christian J Barton","doi":"10.1136/bjsports-2024-108838","DOIUrl":"10.1136/bjsports-2024-108838","url":null,"abstract":"<p><strong>Objectives: </strong>To examine the experiences, knowledge and beliefs of recreational runners with a history of knee surgery regarding (i) enablers and barriers to running participation, (ii) the association of running and knee joint health, and (iii) perceived benefits and motivations for running.</p><p><strong>Methods: </strong>17 runners (≥3 times/week, ≥10 km/week) with a history of knee surgery (7±7 years post-surgery, 9 women, age 36±8 years) participated in one-on-one semi-structured interviews. Interviews were recorded, transcribed verbatim and analysed using reflexive thematic analysis. Trustworthiness was built by following established qualitative research guidelines and by participant validation of findings in the final analysis stages.</p><p><strong>Results: </strong>We identified 9 themes (5 subthemes) for aim (i); 3 themes (10 subthemes) for aim (ii); and 2 themes (4 subthemes) for aim (iii). Positive health professional support including education, exercise rehabilitation and a tailored return-to-run plan enabled participants to return to running following surgery. Effective load management either independently or with coach assistance, and consistent strength training were considered key to maintaining participation. Barriers to running following surgery included unhelpful health professional encounters, persistent knee symptoms and muscle weakness, new running-related injuries, anxiety and fear about reinjury, and difficulty finding time. Participants had varying beliefs about running and knee joint health, although most believed that running benefited long-term knee health. Improved mental health and social connection were the most common motivators to run.</p><p><strong>Conclusion: </strong>Our qualitative findings may inform strategies to support adults to commence, or return to, and maintain running participation following knee surgery.</p>","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":" ","pages":"981-991"},"PeriodicalIF":11.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12229069/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Infographic. Translating the international Delphi consensus on bone stress injuries into clinical practice","authors":"Tim Hoenig, Karsten Hollander, Kristin L Popp, Michael Fredericson, Emily A Kraus, Stuart J Warden, Adam S Tenforde","doi":"10.1136/bjsports-2025-109695","DOIUrl":"https://doi.org/10.1136/bjsports-2025-109695","url":null,"abstract":"Bone stress injuries (BSIs) are common overuse injuries affecting an athlete’s ability to participate in sport. Advancements in understanding the pathophysiology, risk factors and management strategies related to BSIs can improve clinical care. This infographic informs clinicians on how to translate the latest research findings from an international Delphi consensus on BSIs in athletes1 into clinical practice, including optimal strategies for the evaluation and treatment of BSIs with the goal of reducing risk of further injury. Plain radiography, computed tomography (CT) and bone scintigraphy are forms of imaging with low sensitivity and/or specificity for confirming the presence and severity of a BSI and involve health concerns of exposure to ionising radiation. Most panellists agree that magnetic resonance imaging (MRI) is the gold standard for detecting and grading severity of BSI. …","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":"16 1","pages":""},"PeriodicalIF":18.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144328990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Isometric exercise training and resting arterial blood pressure: implications for patients with heart failure with preserved ejection fraction (PhD Academy Award).","authors":"Jamie Edwards","doi":"10.1136/bjsports-2025-110214","DOIUrl":"https://doi.org/10.1136/bjsports-2025-110214","url":null,"abstract":"","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":"15 1","pages":""},"PeriodicalIF":18.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144328787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Free, culturally responsive and trauma-informed physical activity service for people experiencing social disadvantage in Sydney, Australia: the ‘Addi Moves’ initiative","authors":"Chiara Mastrogiovanni, Uzma Choudhry, Oscar Lederman, Grace McKeon, Kemi Wright, Jackie Curtis, Rachel Morell, Kala Miranda, Scott Teasdale, Gülşah Kurt, Sabuj Kanti Mistry, Philip B Ward, Rosanna Barbero, Simon Rosenbaum","doi":"10.1136/bjsports-2025-110249","DOIUrl":"https://doi.org/10.1136/bjsports-2025-110249","url":null,"abstract":"People experiencing social disadvantage (eg, financial hardship) are at risk of poor health.1 Physical activity is an evidence-based strategy to improve physical and mental health,2 and free, tailored programs may enhance participation in underserved populations.3 Founded in 2022, Addi Moves is a free, culturally responsive and trauma-informed physical activity service for individuals experiencing or who have experienced trauma or disadvantage, including mental illness, gender-based violence, food insecurity, homelessness or displacement. Accredited exercise physiologists4 deliver tailored sessions to meet the unique needs of service users. Addi Moves operates within the Addison Road Community Organisation (‘Addi Road’) in Sydney, Australia— a hub for 40 organisations including a food pantry providing free and discounted groceries to ~8500 people weekly. Service users are referred by affiliated organisations. Addi Moves has received programme and research support from Mindgardens Neuroscience Network, New South Wales (NSW) Ministry of Health Refugee Flexible Fund and the National Health and Medical Research Council. Key strategies guiding Addi Moves are described below. An initial co-design process engaged people …","PeriodicalId":9276,"journal":{"name":"British Journal of Sports Medicine","volume":"12 1","pages":""},"PeriodicalIF":18.4,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}