Stability of Selected Lower Limb Joint Kinetic Parameters During Vertical Jump
Stability of Selected Lower Limb Joint Kinetic Parameters During Vertical Jump
复制标题
垂直跳跃过程中选定下肢关节动力学参数的稳定性
DOI：
10.1123/jab.18.1.83
复制
发表时间：
2002
影响因子：
1.4
通讯作者：
R. Squadrone
中科院分区：
文献类型：
--
作者：
R. Rodano;R. Squadrone
稳定性和一致性是关节动力学测量中的一个关键方面。通过应用一种称为序贯估计程序的统计技术，这项工作的目的是确定在垂直跳跃过程中获得稳定的髋关节、膝盖和脚踝力矩和力量所需的最少试验次数。9名竞技田径短跑运动员(2 1.7±3.5岁，177.6±4.3 cm，70.8±3.6 kg)完成了5个系列5个双腿最大高度反动垂直跳跃。根据力平台和运动学数据，计算髋关节、膝关节和踝关节的力矩和功率输出。应用于这些数据的序贯估计程序显示，至少需要12个试验方案来确定所有选定参数的真实测量。每个变量的平均试验次数大于8次，小于13次。当髋关节瞬间被排除在分析之外时，10次试验方案足以达到稳定的平均值。总而言之。这项研究的结果是……
Stability and consistency is a critical aspect in joint kinetic measurements. By applying a statistical technique, called sequential estimation procedure, the aim of this work was to determine the minimum number of trials required to obtain a stable mean for peak hip, knee, and ankle moments and powers during vertical jump. Nine competitive track and field sprinters (21.7 ± 3.5 yrs, 177.6 ± 4.3 cm, 70.8 ± 3.6 kg) performed 5 series of 5 double-legged maximum-height countermovement vertical jumps. From force platform and kinematic data, moment and power output were calculated for hip, knee, and ankle joints. The sequential estimation procedure applied to these data revealed that at least a 12-trial protocol is needed to establish a true measure for all the selected parameters. The mean number of trials for each variable was greater than 8 and less than 13. When hip moments were excluded from the analysis, a 10-trial protocol could be sufficient to reach a stable mean. In conclusion. the results of this stu...