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  • Muscle damage and metabolic responses to repeated-sprint running with and without deceleration

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    Accepted Manuscript (AM)
    Author(s)
    Minahan, Clare L
    Poke, Daniel P
    Morrison, Jaime
    Bellinger, Phillip M
    Griffith University Author(s)
    Minahan, Clare L.
    Morrison, Jaime D.
    Bellinger, Phil M.
    Poke, Daniel P.
    Year published
    2018
    Metadata
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    Abstract
    Minahan, CL, Poke, DP, Morrison, J, and Bellinger, PM. Muscle damage and metabolic responses to repeated-sprint running with and without deceleration. J Strength Cond Res XX(X): 000–000, 2017—This study aimed to determine whether repeated-sprint running with deceleration aggravates markers of muscle damage or delays the recovery of performance compared with repeated-sprint running without deceleration. Fourteen male team-sport athletes performed 2 randomly ordered testing sessions on a nonmotorized treadmill with one session requiring participants to decelerate (TMd) within 4 seconds before stopping or immediately step to ...
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    Minahan, CL, Poke, DP, Morrison, J, and Bellinger, PM. Muscle damage and metabolic responses to repeated-sprint running with and without deceleration. J Strength Cond Res XX(X): 000–000, 2017—This study aimed to determine whether repeated-sprint running with deceleration aggravates markers of muscle damage or delays the recovery of performance compared with repeated-sprint running without deceleration. Fourteen male team-sport athletes performed 2 randomly ordered testing sessions on a nonmotorized treadmill with one session requiring participants to decelerate (TMd) within 4 seconds before stopping or immediately step to the side of the treadmill belt at the completion of each sprint (TMa). Peak and mean velocities, speed decrement, blood lactate concentrations, and oxygen uptake were monitored during the repeated-sprint running protocols. Countermovement vertical jump (CMJ) performance, perceived muscle soreness, sit-and-reach flexibility, plasma creatine kinase (CK), lactate dehydrogenase (LDH), and myoglobin (Mb) concentrations were quantified immediately before and after and 45 minutes, 24 and 48 hours after repeated-sprint running protocols. Although muscle damage was indicated by increases in CK, LDH, and Mb (p ≤ 0.05) in both groups, there was no significant effect of condition (TMa vs. TMd) on any of the measured performance or physiological variables (p > 0.05). The present study indicated that the removal of deceleration from repeated-sprint running on a nonmotorized treadmill has no effect on metabolism or performance during or after repeated-sprint running or markers of muscle damage.
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    Journal Title
    Journal of Strength and Conditioning Research
    DOI
    https://doi.org/10.1519/JSC.0000000000002164
    Copyright Statement
    © 2018 LWW. This is a non-final version of an article published in final form in Journal of Strength and Conditioning Research Pages 1-8, 2018. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal link for access to the definitive, published version.
    Note
    This publication has been entered into Griffith Research Online as an Advanced Online Version.
    Subject
    Sports science and exercise
    Sports science and exercise not elsewhere classified
    Medical physiology
    Publication URI
    http://hdl.handle.net/10072/374818
    Collection
    • Journal articles

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