Postural coordination patterns as a function of dynamics of the support surface
Postural coordination patterns as a function of dynamics of the support surface
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DOI：
10.1016/s0167-9457(01)00052-5
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发表时间：
2001-12-01
影响因子：
2.1
通讯作者：
Newell, KM
中科院分区：
文献类型：
--
作者：
Ko, YG;Challis, JH;Newell, KM
本研究探讨了代偿性姿势协调模式，出现在面对的支持表面的动态变化。成年受试者站在一个移动平台上，该平台在前后方向上正弦平移。支撑表面平移的频率和振幅在宽范围的参数值上被操纵。结果表明，随着平台运动频率的增加，人体姿势系统地利用了关节空间的自由度，产生了四种不同的姿势协调模式（一种刚体模式-->踝关节模式-->踝髋关节模式-->踝髋膝关节模式）。看来，直立的站立姿势有一个小的协调模式，特别是支持表面的动态。(C)出版社：Elsevier Science B. V.
The present study investigated the compensatory postural coordination patterns that emerge in the face of dynamic changes in the surface of support. Adult subjects stood on a moving platform that was sinusoidally translated in the anterior-posterior direction. The frequency and amplitude of the support surface translation were manipulated over a wide range of parameter values. The results revealed that as the frequency of platform motion increased, the postural system systematically exploited the available joint-space degrees of freedom and generated four distinct postural coordination modes (a rigid mode --> ankle mode --> ankle-hip mode --> ankle-hip-knee mode). It appears that upright standing posture has a small set of coordination patterns that are particular to the dynamics of the surface of support. (C) 2001 Published by Elsevier Science B.V.