The Dynamical Stability of Visual Coupling and Knee Flexibility in Skilled Kendama Players
The Dynamical Stability of Visual Coupling and Knee Flexibility in Skilled Kendama Players
复制标题
剑玉高手的视觉耦合动态稳定性和膝关节灵活性
DOI：
10.1080/10407413.2011.617669
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发表时间：
2011
影响因子：
1.9
通讯作者：
M.
中科院分区：
文献类型：
--
作者：
Ito;M.;Mishima;H.;Sasaki;M.
我们研究了姿势控制在一项需要感知-运动协调的技能性任务中的作用，这是一项名为“挥入”的剑杆技巧，它使用一个在绳子上移动的球。4名专家和4名新手参与，每人进行200次挥杆试验。专家组的头部和膝盖运动比新手组更广泛，专家组的头部和球以及膝盖和球的运动保持相同模式的时间比新手组长。在每次试验结束时，专家组的头部和球之间的距离比新手组的更一致，但两个技能组在膝盖和球之间的距离上表现出相似的变化。这些研究结果表明，剑道高手控制他们的身体运动，以动态地协调他们与移动的球，和稳定的头部和球的强耦合的专家似乎是由膝盖运动的灵活性支持。
We examined the role of postural control in a skilled task that requires perceptual-motor coordination, the kendama trick “Swing-in,” which uses a moving ball on a string. Four expert and 4 novice players participated, each performing 200 trials of Swing-in. The head and knee movements of the experts were more extensive than those of the novices, and the movements of the head and the ball, as well as the knee and the ball, maintained the same patterns longer in the experts than in the novices. At the end of each trial, distances between the head and the ball in the expert group were more consistent than those in the novice group, but the 2 skill groups showed similar variability in distance between the knee and the ball. These findings suggest that kendama experts controlled their body movement to dynamically coordinate them with the moving ball, and the stability of the strong coupling of the head and the ball in the experts seemed to be supported by the flexibility of knee movement.