摘要
针对肘、腕关节处的旋转轴并不垂直,直接用欧拉角代替这两处的关节转角不合理的问题,利用电磁传感器给出了肘、腕关节的屈/伸轴的测量方法,将肘、腕关节的运动各自分解成为2个分运动,利用这2个分运动的空间几何关系,提出了肘关节的旋内/旋外轴和腕关节的内收/外展轴的计算方法,并给出了肘、腕关节的旋转角度的计算方法。
The elbow flexion-extension axis is not perpendicular to the elbow pronation-extension axis, also the wrist joint, So it is unreasonable to describe their range of motion（ROM） by Euler angles directly. In this paper,the actual elbow flexionextension axis and the wrist flexion-extension axis were determined by means of the electromagnetic tracking system, the joint rotation was decomposed into two componential movements. Furthermore a new method was proposed to calculate the pronation-extension axis of elbow and the abduction-adduction axis of wrist based on geometrical relationship between two componential movements. The method of calculating rotation angles of elbow and wrist was also given.
出处
《天津科技大学学报》
CAS
2006年第4期65-67,85,共4页
Journal of Tianjin University of Science & Technology
基金
天津市自然科学基金资助项目(043802111)
关键词
生物力学
人体上肢
电磁系统
ROM
biomechanics
upper limb
electromagnetic tracking system
ROM
