The reliability of a repeated sprint test during simulated team-sport running on a non-motorised treadmill

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Science in Football VI: The Proceedings of the Sixth World Congress on Science and Football, 2009, 1, pp. 337 - 340
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The physical demands of the various football codes have been reponed to be broadly similar (Reilly and Gilboume, 2003). Specifically, most football codes require players to generate brief maximal sprints (1-65), repeatedly interspersed with short recovery periods (<21 5). The capacity to repeat these brief maximal sprints in a short period of time has been termed repeated sprint ability (RSA) and is considered an imJX)rtanr performance characteristic (Spencer el al., 2006). For these reasons, researchers have examined the reliability of RSA measures using a 5 x 65 sprint test in a 'non-fatigued' state (Hughes et at, 2006; McCawley and Bishop, 2006). However, in a typical football match (i.e of various football codes), rcpeated sprint efforts arc often completed in a fatigued state. Therefore, while existing RSA tests may be a reliable way of assessing RSA in team sport participants, they may not reflect the physiological state of a participant when repeating sprint efforts during a match. Therefore, the purpose of this study was to determine the ecological reliability of a 5 x 6s RSA test when completed under fatigue on a non-motori.sed treadmill (NMT).
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