IDENTIFICATION OF KINETIC AND TEMPORAL FACTORS RELATED TO VERTICAL JUMP PERFORMANCE
IDENTIFICATION OF KINETIC AND TEMPORAL FACTORS RELATED TO VERTICAL JUMP PERFORMANCE
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DOI：
10.1123/jab.9.2.95
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发表时间：
1993-05-01
影响因子：
1.4
通讯作者：
VAMOS, L
中科院分区：
文献类型：
--
作者：
DOWLING, JJ;VAMOS, L
受试者进行最大垂直跳跃的力量平台上，以揭示是否产生的力-时间曲线可以识别良好的性能的特点。瞬时功率-时间曲线也来自于力-时间曲线。从力-时间曲线和功率-时间曲线计算了18个时间和动力学变量，并通过相关性和多元回归与起飞速度和最大高度进行了比较。受试者之间的施力模式差异很大，难以识别良好表现的重要特征。最大正功效被认为是一个很好的单一预测身高，但最好的三预测模型，不包括最大功效，只能解释66.2%的身高方差。发现高的最大力（> 2个体重）是必要的，但不足以获得良好的性能。有些受试者在产生高峰力的情况下，跳跃幅度很低，这表明施力方式比力量更重要。
Subjects performed maximum vertical jumps on a force platform to reveal whether resulting force-time curves could identify characteristics of good performances. Instantaneous power-time curves were also derived from the force-time curves. Eighteen temporal and kinetic variables were calculated from the force- and power-time curves and were compared with the takeoff velocities and maximum heights via correlation and multiple regression. The large variability in the patterns of force application between the subjects made it difficult to identify, important characteristics of a good performance. Maximum positive power was found to be an excellent single predictor of height, but the best three-predictor model, not including maximum power, could only explain 66.2% of the height variance. A high maximum force (> 2 body weights) was found to be necessary but not sufficient for a good performance. Some subjects had low jumps in spite of generating high peak forces, which indicated that the pattern of force application was more important than strength.