Dr Christopher Bramah C.A.Bramah@salford.ac.uk
Lecturer in Physiotherapy
Dr Christopher Bramah C.A.Bramah@salford.ac.uk
Lecturer in Physiotherapy
Samantha Rhodes
Dr Alex Clarke-Cornwell A.M.Clarke-Cornwell@salford.ac.uk
Associate Professor/Reader
Thomas Dos'Santos
Dr Christopher Bramah C.A.Bramah@salford.ac.uk
Researcher
Samantha Rhodes
Researcher
Dr Alex Clarke-Cornwell A.M.Clarke-Cornwell@salford.ac.uk
Researcher
Thomas Dos'Santos
Researcher
Objective: To investigate the association between sprint running biomechanics and sprint-related hamstring strain injury (HSI) in elite male football players. Methods: This prospective cohort study recruited 126 professional male football players from eight clubs in the English football league, who were followed across a 6-month period. Maximal velocity sprint running videos (240 fps) were collected from five teams during preseason (June to August) and three teams during the in-season period (October to March) and subsequently assessed using the Sprint Mechanics Assessment Score (S-MAS) by a single, blinded assessor. Sprint-related HSI within the previous 12 months and any new MRI-confirmed sprint-related HSI were reported by club medical staff. Incidence rate ratios were calculated using a Poisson regression model to determine the association between S-MAS and new sprint-related HSIs. Results: There were 23 players with a previous sprint-related HSI and 17 new HSIs during the follow-up period, with 14 sprint-related injuries. S-MAS values were significantly greater among players with a previous HSI (median difference (MD): 1, p=0.007, 95% CI: 0 to 3) and those sustaining a new sprint-related HSI (MD: 2, p=0.006, 95% CI: 1 to 3) compared with uninjured players. Adjusting for age and previous injury found a significant association between the S-MAS and prospective sprint-related HSIs, with an adjusted incidence rate ratio of 1.33 (95% CI: 1.01 to 1.76) for each one-point increase in S-MAS. Conclusions: This is the first study to identify an association between sprint running kinematics and prospective sprint-related HSI in elite male football players. Sprint running mechanics assessed using the S-MAS were associated with both past and future HSIs, with a 33% increase in the risk of a new HSI with every one-point increase in S-MAS. Given the association to injury, evaluating sprint mechanics within rehabilitation and injury prevention may be warranted.
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 11, 2025 |
Online Publication Date | Mar 23, 2025 |
Publication Date | Mar 23, 2025 |
Deposit Date | Mar 12, 2025 |
Publicly Available Date | Mar 23, 2025 |
Journal | British Journal of Sports Medicine |
Print ISSN | 0306-3674 |
Electronic ISSN | 1473-0480 |
Publisher | BMJ Publishing Group |
Peer Reviewed | Peer Reviewed |
Volume | 59 |
Issue | 14 |
Pages | bjsports-2024-108600 |
DOI | https://doi.org/10.1136/bjsports-2024-108600 |
Keywords | Football, Running, Rehabilitation, Sporting injuries, Hamstring Muscles |
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Copyright Statement
This article has been accepted for publication in British Journal of Sports Medicine, 2025 following peer review, and the Version of Record can be accessed online at https://doi.org/10.1136/bjsports-2024-108600
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