IDENTIFICATION OF A FREQUENCY-RESPONSE MODEL OF JOINT ROTATION

被引：16

作者：

BECKER, JD

MOTE, CD

机构：

[1] Department of Mechanical Engineering, University of California, Berkeley, CA

来源：

JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 01期

关键词：

D O I：

10.1115/1.2891121

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

A second order, linear oscillator transfer function model is fit to the measured transfer function relating the abduction-adduction rotation of the first finger to the applied moment. Nearly constant isometric contractions of the first palmar and dorsal interossei are maintained by the subjects during the measurements. The stiffness and damping components of the identified models increase significantly with increasing isometric contraction when compared to those recorded under relaxed contraction. Muscle fatigue causes the natural frequency, damping ratio and stiffness of the joint rotation to decrease under full isometric contraction, and it causes the natural frequency and stiffness to increase when the muscles are relaxed. © 1990 by ASME.

引用

页码：1 / 8

页数：8

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