RELATIONSHIP BETWEEN REACTIVE STRENGTH VARIABLES IN HORIZONTAL AND VERTICAL DROP JUMPS
RELATIONSHIP BETWEEN REACTIVE STRENGTH VARIABLES IN HORIZONTAL AND VERTICAL DROP JUMPS
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DOI：
10.1519/jsc.0b013e3182510870
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发表时间：
2012-05-01
影响因子：
3.2
通讯作者：
Zanetti, Sara
中科院分区：
文献类型：
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作者：
Ball, Nick B.;Zanetti, Sara
Ball， NB和Zanetti， S.水平和垂直落差跳跃中反应强度变量的关系。[J] .力学杂志，26(5):1407-1412,2012-本研究的目的是探讨垂直和水平落体跳（DJ）反应强度的关系。有跳跃训练经验的受试者（n = 28）在0.4 m的箱子内进行6次垂直dj和6次水平dj。计算并分析了接触时间、跳跃高度、跳跃距离和反应强度指数（RSI）。典型误差测量（TEMCV%）和类内相关性（ICCs）用于评估受试者内信度。使用icc评估上述变量的跳跃之间和跳跃内的关系。ICC （r > 0.789）和TEMCV%（< 10%）表明垂直和水平dj在每个变量上都具有良好的可靠性。接触时间与跳跃无关（r = 0.222），对DJ垂直高度（r = 0.152）和水平距离（r = 0.261）没有影响。RSI相关性（r = 0.533）表明水平DJ和垂直DJ的反应能力之间存在较大的相关性。与水平dj相比，垂直dj的接触时间显着降低（p < 0.0001）。这项研究表明，水平dj是可靠的，可能更好地用于训练反应性运动，不需要短暂的接触时间。
Ball, NB, and Zanetti, S. Relationship between reactive strength variables in horizontal and vertical drop jumps. J Strength Cond Res 26(5): 1407-1412, 2012-The aim of this study was to investigate the relationship between reactive strength in a vertical and a horizontal drop jump (DJ). Subjects (n = 28) with previous jump training experience, performed 6 vertical DJs and 6 horizontal DJs from a 0.4-m box. Contact time, height jumped, distance jumped, and reactive strength index (RSI) were calculated and analyzed. Typical error measurements (TEMCV%) and intraclass correlations (ICCs) were used to assess the intrasubject reliability. Relationships between jumps and within jumps of the aforementioned variables were assessed using ICCs. The ICC (r > 0.789) and the TEMCV% (< 10%) indicated good reliability for both vertical and horizontal DJs across each variable. Contact time showed no relationship between jumps (r = 0.222) and had no effect on the vertical DJ height (r = 0.152) or horizontal DJ distance (r = 0.261). The RSI correlation (r = 0.533) indicated a large relationship between reactive ability in the horizontal DJ and the vertical DJ. Contact times were significantly lower in vertical DJs compared with horizontal DJs (p < 0.0001). This study indicated that horizontal DJs are reliable and may be better used to train reactive movements that do not require brief contact times.