The equations of motion for a standing human reveal three mechanisms for balance
The equations of motion for a standing human reveal three mechanisms for balance
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DOI：
10.1016/j.jbiomech.2005.12.016
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发表时间：
2007-01-01
影响因子：
2.4
通讯作者：
Hof, At L.
中科院分区：
文献类型：
--
作者：
Hof, At L.
推导了站立多节人体模型的运动方程。这些方程的输出量是全身质量中心（CoM）的水平加速度。有三个输入项，它们可以被确定为可以保持平衡的三种机制：（1）通过相对于CoM的垂直投影移动压力中心，（2）通过围绕CoM反向旋转段，以及（3）通过施加外力，对于前两种机制，可以从测力板记录中获得对CoM加速度的各自贡献。这通过来自实验的一些示例数据来说明，这些示例数据表明来自机构2的贡献可以是相当大的，例如在单腿站立时。(c)2006爱思唯尔有限公司保留所有权利。
The equations of motion for a standing multi-segment human model are derived. Output quantity of these equations is the horizontal acceleration of the whole-body centre of mass (CoM). There are three input terms and they can be identified as the three mechanisms by which balance can be maintained: (1) by moving the centre of pressure with respect to the vertical projection of the CoM, (2) by counter-rotating segments around the CoM, and (3) by applying an external force, other than the ground reaction force.For the first two mechanisms the respective contributions to CoM acceleration can be obtained from force plate recordings. This is illustrated by some example data from experiments, which show that the contribution from mechanism 2 can be considerable, e.g. in one-legged standing. (c) 2006 Elsevier Ltd. All rights reserved.