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  • Effect of high-speed running on hamstring strain injury risk

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    Accepted Manuscript (AM)
    Author(s)
    Duhig, Steven
    Shield, Anthony J
    Opar, David
    Gabbett, Tim J
    Ferguson, Cameron
    Williams, Morgan
    Griffith University Author(s)
    Duhig, Steven
    Year published
    2016
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    Abstract
    Background: Hamstring strain injuries (HSIs) are common within the Australian Football League (AFL) with most occurring during high-speed running (HSR). Therefore, this study investigated possible relationships between mean session running distances, session ratings of perceived exertion (s-RPE) and HSIs within AFL footballers. Methods: Global positioning system (GPS)-derived running distances and s-RPE for all matches and training sessions over two AFL seasons were obtained from one AFL team. All HSIs were documented and each player's running distances and s-RPE were standardised to their 2-yearly session average, then ...
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    Background: Hamstring strain injuries (HSIs) are common within the Australian Football League (AFL) with most occurring during high-speed running (HSR). Therefore, this study investigated possible relationships between mean session running distances, session ratings of perceived exertion (s-RPE) and HSIs within AFL footballers. Methods: Global positioning system (GPS)-derived running distances and s-RPE for all matches and training sessions over two AFL seasons were obtained from one AFL team. All HSIs were documented and each player's running distances and s-RPE were standardised to their 2-yearly session average, then compared between injured and uninjured players in the 4 weeks (weeks −1, −2, −3 and −4) preceding each injury. Results: Higher than ‘typical’ (ie, z=0) HSR session means were associated with a greater likelihood of HSI (week −1: OR=6.44, 95% CI=2.99 to 14.41, p<0.001; summed weeks −1 and −2: OR=3.06, 95% CI=2.03 to 4.75, p<0.001; summed weeks −1, −2 and −3: OR=2.22, 95% CI=1.66 to 3.04, p<0.001; and summed weeks −1, −2, −3 and −4: OR=1.96, 95% CI=1.54 to 2.51, p<0.001). However, trivial differences were observed between injured and uninjured groups for standardised s-RPE, total distance travelled and distances covered whilst accelerating and decelerating. Increasing AFL experience was associated with a decreased HSI risk (OR=0.77, 95% CI 0.57 to 0.97, p=0.02). Furthermore, HSR data modelling indicated that reducing mean distances in week −1 may decrease the probability of HSI. Conclusions: Exposing players to large and rapid increases in HSR distances above their 2-yearly session average increased the odds of HSI. However, reducing HSR in week −1 may offset HSI risk.
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    Journal Title
    British Journal of Sports Medicine
    Volume
    50
    Issue
    24
    DOI
    https://doi.org/10.1136/bjsports-2015-095679
    Copyright Statement
    © The Author(s) 2016. This is the author-manuscript version of this paper. It is posted here with permission of the copyright owner(s) for your personal use only. No further distribution permitted. For information about this journal please refer to the publisher’s website or contact the author(s).
    Subject
    Engineering
    Biomedical and clinical sciences
    Sports science and exercise not elsewhere classified
    Education
    Publication URI
    http://hdl.handle.net/10072/372704
    Collection
    • Journal articles

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