中文摘要：

在对小腿运动学和膝关节动力学分析的基础上,开发了一款基于Matlab的各种步态下人体膝关节动力学仿真平台.基于反向动力学原理,编写了Matlab计算程序,设计了仿真平台的图形用户界面（GUI）,通过读取运动捕捉系统采集的下肢运动信息及三维测力台的支反力,实现了各种步态下膝关节关节力、关节力矩的快速计算.以正常步态为例,通过对一名健康人体右侧膝关节分析,并与Visual 3D软件结果进行对比,验证了该平台的可靠性,从而为人工膝关节置换和膝关节康复运动评定提供了一种新的分析工具.

英文摘要：

On the basis of the analysis of shank kinematics and knee joint dynamics, a Matlab-based under various kinds of gait of simulation platform for human knee joint dynamics was designed. Basing on inverse dynamics principle to write the Matlab program, graph user interface （GUI） of simulation platform was designed, through reading lower limb movement information from motion capture system and reaction force from 3D load stage, knee joint force and joint torque for various gaits were calculated rapidly. With a normal gait as an example, the right knee joint of a health subject was analyzed, the reliability of the platform was verified by comparing the results with those generated by Visual 3D software, and the platform also provided new analysis tools for the artificial knee joint replacement and knee rehabilitation exercise evaluation.