Compensatory coordination of release parameters in a throwing task
Compensatory coordination of release parameters in a throwing task
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DOI：
10.1080/00222890009601384
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发表时间：
2000-12-01
影响因子：
1.4
通讯作者：
Ishikura, T
中科院分区：
文献类型：
--
作者：
Kudo, K;Ito, T;Ishikura, T
研究了投掷动作中各释放参数的一致性和协调性。作者使用了一种新开发的释放参数协调指数（ICRP），该指数量化了参数之间的补偿关系（即，不是由参数的一致性引起的），8名参与者练习了150次试验，用非优势手，一个针对固定目标的投球任务。球释放速度矢量的大小，在释放参数，以及性能被发现变得与实践相一致。ICRP评分表明，释放参数相互补充协调，并且随着实践的发展，协调程度不断提高。这些结果表明，不同的释放参数之间的补偿关系有助于减少在一个投球任务，其目标是准确性的性能的变化。
The consistency and coordination of release parameters in ball-throwing movements were investigated. The authors used a newly developed index of coordination for release parameters (ICRP) that quantifes the degree of improvement of performance consistency caused by compensatory relationships among parameters (i.e., not caused by consistency of parameters), Eight participants practiced for 150 trials, with the nondominant hand, a ball-throwing task aimed at a stationary target. The magnitude of the ball-release velocity vector, among release parameters, as well as the performance was found to become consistent with practice. The ICRP score suggested that the release parameters were complementarily coordinated with one another, and that the coordination improved with practice. Those results indicate that compensatory relationships among varying release parameters contribute to reducing the variability of performance in a ball-throwing task whose goal is accuracy.