The Role of Mechanoreceptive Information in the Stability of Human Upright Posture: A Theoretical Consideration
The Role of Mechanoreceptive Information in the Stability of Human Upright Posture: A Theoretical Consideration
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机械感受信息在人体直立姿势稳定性中的作用：理论思考
DOI：
10.1123/mcj.1.1.3
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发表时间：
1997
期刊：
影响因子：
1.1
通讯作者：
Weifeng Zhao
中科院分区：
文献类型：
--
作者：
Ge Wu;Weifeng Zhao
这项研究考察了来自皮肤机械感受器的反馈在人体直立姿势稳定性中的作用。建立了踝关节扭矩与足部肌肉感受器、关节感受器和皮肤机械感受器延迟输出成正比的两连杆一自由度倒立摆人体模型。理论分析和数值模拟表明，机械感受性信息的使用减小了系统动力响应的频率范围和最大峰峰值。然而，如果没有肌肉受体的使用，机械感受性反馈就不能稳定系统。此外，当受试者的平衡直立姿势受到支撑平台短暂的向前/向后移动的干扰时，测量了受试者的身体运动。他们的足部皮肤机械感受性丧失或改变是由以下因素引起的：(A)让健康受试者站在柔软的表面上；(B)测试患有神经病的患者的皮肤机械感受性。
This study examined the role of feedback from cutaneous mechanoreceptors in the stability of human upright posture. A two-link, one degree of freedom, inverted pendulum model was constructed for the human body with ankle joint torque proportional to the delayed outputs from muscle receptors, joint receptors, and cutaneous mechanoreceptors in the foot. Theoretical analysis and numerical simulations indicated that the use of mechanoreceptive information reduced the frequency range and the maximum peak-peak value of the dynamic response of the system. However, without the use of muscle receptors, the mechanoreceptive feedback could not stabilize the system. In addition, body movement of human subjects was measured when their balanced upright posture was disturbed by a transient, forward/backward movement of a supporting platform. The loss of or change in cutaneous mechanoreceptive sense in their feet was induced by (a) having healthy subjects stand on a soft surface and (b) testing neuropathic patients with ...