FACTORS INFLUENCING THE ANGULAR VELOCITY OF A HUMAN LIMB SEGMENT
FACTORS INFLUENCING THE ANGULAR VELOCITY OF A HUMAN LIMB SEGMENT
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DOI：
10.1016/0021-9290(87)90251-x
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发表时间：
1987-01-01
影响因子：
2.4
通讯作者：
WOODWORTH, GG
中科院分区：
文献类型：
--
作者：
BOBER, T;PUTNAM, CA;WOODWORTH, GG
本文研究了不同幅度和速度的屈膝后伸膝动作，即稳定大腿蹬伸动作的角速度。此外，将预拉伸后达到的最大延伸速度与在没有预拉伸的试验中获得的最大延伸速度进行比较。拉伸的最大速度从213到1087度s-1，这取决于预拉伸的范围和速度。在没有预拉伸的试验中，当涉及到小范围的运动时，伸展速度变差，高达43%。在全方位运动的试验中，在有和没有预拉伸的任务中，伸展的速度是相似的。在这种情况下，弹性能的可能作用进行了讨论。所用方法为电测角法。
The angular velocity of a knee extension performed after flexion with different range and velocity, i.e. the kicking movement with stabilized thigh, was investigated and decribed. In addition, the maximum velocity of extension reached after prestretch was compared to that obtained in trials without prestretch. The maximum velocity of extension varied from 213 to 1087 degrees s-1 depending on the range and velocity of prestretch. In trials without prestretch the velocity of extension was worse up to 43% when small range of movement was involved. In trials with full range of movement the velocity of extension was similar in the tasks with and without prestretch. In this context the possible role of elastic energy is discussed. The method used was electrogoniometry.