Suchomel Timothy J, Sole Christopher J, Bailey Christopher A, Grazer Jacob L, Beckham George K
1Center of Excellence for Sport Science and Coach Education, Department of Exercise and Sport Sciences, East Tennessee State University, Johnson City, Tennessee; and 2Department of Exercise Science, LaGrange College, LaGrange, Georgia.
J Strength Cond Res. 2015 May;29(5):1310-6. doi: 10.1519/JSC.0000000000000761.
The purpose of this study was to examine the differences in reactive strength index-modified (RSImod), jump height (JH), and time to takeoff (TTT) between 6 U.S. collegiate sport teams. One hundred six male and female Division I collegiate athletes performed unloaded (<1 kg) and loaded (20 kg) countermovement jumps as part of an ongoing athlete monitoring program. Reactive strength index-modified, JH, and TTT values for each team were compared using 1-way analysis of variance. Statistically significant differences in RSImod (p < 0.001), JH (p < 0.001), and TTT (p = 0.003) existed between teams during the unloaded jumping condition. Similarly, statistically significant differences in RSImod (p < 0.001), JH (p < 0.001), and TTT (p = 0.028) existed between teams during the loaded jumping condition. Men's soccer and baseball produced the greatest RSImod values during both the unloaded and loaded jumping conditions followed by women's volleyball, men's tennis, women's soccer, and women's tennis. The greatest JH during unloaded and loaded jumping conditions was produced by men's baseball followed by men's soccer, women's volleyball, men's tennis, women's soccer, and women's tennis. Men's soccer produced shorter TTT compared with men's baseball (12.7%) and women's soccer (13.3%) during the unloaded and loaded jumping conditions, respectively. Collegiate sport teams exhibit varying reactive strength characteristics during unloaded and loaded jumping conditions. Understanding the differences in RSImod between sports may help direct the creation of training and monitoring programs more effectively for various sports.
本研究的目的是检验6支美国大学运动队在反应力量指数修正值（RSImod）、跳跃高度（JH）和起跳时间（TTT）方面的差异。作为正在进行的运动员监测项目的一部分，106名美国大学一级男女运动员进行了无负重（<1 kg）和负重（20 kg）的反向纵跳。使用单因素方差分析比较各队的反应力量指数修正值、跳跃高度和起跳时间值。在无负重跳跃条件下，各队之间的RSImod（p < 0.001）、JH（p < 0.001）和TTT（p = 0.003）存在统计学显著差异。同样，在负重跳跃条件下，各队之间的RSImod（p < 0.001）、JH（p < 0.001）和TTT（p = 0.028）也存在统计学显著差异。在无负重和负重跳跃条件下，男子足球和棒球产生的RSImod值最大，其次是女子排球、男子网球、女子足球和女子网球。在无负重和负重跳跃条件下，男子棒球产生的跳跃高度最大，其次是男子足球、女子排球、男子网球、女子足球和女子网球。在无负重和负重跳跃条件下，男子足球的起跳时间分别比男子棒球（12.7%）和女子足球（13.3%）短。大学运动队在无负重和负重跳跃条件下表现出不同的反应力量特征。了解不同运动项目之间RSImod的差异可能有助于更有效地指导针对各种运动项目的训练和监测计划的制定。
