Precision Sport Science, Redwood City, California.
Department of Health and Medical Sciences, Swinburne University of Technology, Hawthorn Campus, Australia.
J Strength Cond Res. 2024 Sep 1;38(9):e477-e488. doi: 10.1519/JSC.0000000000004828. Epub 2024 Jul 23.
Wannouch, YJ, Leahey, SR, Whitworth-Turner, CM, Oliver, JL, YH, KC, Laffer, JC, and Leicht, AS. A comprehensive analysis of 10-yard sprint reliability in male and female youth athletes. J Strength Cond Res 38(9): e477-e488, 2024-This study investigates the inter-week test-retest reliability of 9.14 meter (10 yard) sprint times in youth athletes. Although essential for assessing athletic ability and training efficacy, the critical and comprehensive examination of both relative and absolute reliability indices for short-distance sprints has been insufficient in youth contexts. One hundred ninety-eight youth athletes (128 males and 70 females) underwent 2 sprint attempts across 2 separate trials 24 hours apart and within 7 days of each other. The sprints were measured using dual-beam timing gates to capture split times for 0-4.57 meter (0-5 yards), 4.57-9.14 meter (5-10 yards), and 0-9.14 meter (0-10 yards). The minimal mean difference between the best sprint times across trials was 0.02 ± 0.13 seconds for males and 0.003 ± 0.14 seconds for females. No significant mean differences were found between trials for either gender (males: p = 0.0875; females: p = 0.8752), suggesting no systematic bias in sprint times. The SEM was 0.092 seconds for males and 0.099 seconds for females, with a corresponding SEMCV% of 4.6 and 4.8%. The overall coefficient of variation was 9.8% for males and 8.9% for females. Intraclass correlation coefficient values suggested that the sprint times across trials were reliable (males: 0.80; females: 0.76). The minimal detectable change was 0.25 seconds for males, 0.27 seconds for females. Cohen's d indicated trivial effects (<0.2) for males (0.154) and females (0.021). Minimal mean differences, a low SEM , and consistent ICC values demonstrate that the 0-9.14 meter sprint is a reliable assessment in youth athletes.
万努奇、J.Y.、利厄海、S.R.、惠特沃思-特纳、C.M.、奥利弗、J.L.、Y.H.、K.C.、拉弗尔、J.C.和莱特、A.S.。男性和女性青年运动员 10 码冲刺可靠性的综合分析。J 强能力研究 38(9):e477-e488，2024-本研究调查了青年运动员 9.14 米（10 码）冲刺时间的跨周测试-再测试可靠性。尽管评估运动能力和训练效果至关重要，但在青年环境中，对短距离冲刺的相对和绝对可靠性指标的关键和全面检查还不够充分。198 名青年运动员（128 名男性和 70 名女性）在 2 个不同试验中进行了 2 次冲刺尝试，间隔 24 小时，相隔 7 天。冲刺使用双束定时门进行测量，以捕获 0-4.57 米（0-5 码）、4.57-9.14 米（5-10 码）和 0-9.14 米（0-10 码）的分段时间。最佳冲刺时间在试验之间的最小平均差异为男性 0.02±0.13 秒，女性 0.003±0.14 秒。性别之间没有发现试验之间的平均差异（男性：p=0.0875；女性：p=0.8752），表明冲刺时间没有系统偏差。男性的 SEM 为 0.092 秒，女性为 0.099 秒，相应的 SEMCV%为 4.6%和 4.8%。总体变异系数为男性 9.8%，女性 8.9%。男性的组内相关系数值为 0.80，女性为 0.76，表明试验之间的冲刺时间是可靠的。最小可检测变化为男性 0.25 秒，女性 0.27 秒。男性（0.154）和女性（0.021）的科恩 d 表明影响较小（<0.2）。最小平均差异、低 SEM 和一致的 ICC 值表明，0-9.14 米冲刺是青年运动员可靠的评估方法。
