A three dimensional biomechanical model for swing phase of humwn gait and analytic smiulation of below-knee Amputees

• Main Authors: Wu-fu Luan, 阮五福
• Other Authors: K.C.Chung,S.H. Lin
• Format: Others
• Language: en_US
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/57800609681803515653

碩士 === 國立成功大學 === 醫學工程學系 === 84 === Recently, scholars have used biomechanical model to predict and analyze the dynamics of human motion. Some of them focus on gait analyses that intend to give people better understanding of human walking pattern and the induced joint forces. In order to build a biomechanical model that can predict the gait motion of below-knee amputees, this paper uses seven links to build a three dimensional dynamic model to simulate the swing phase of human gait. The dynamic equations are derived based on Newton- Euler method. Once the motion parameters such as displacement, velocity、and acceleration are measured experimentally,the joint forces of normal subject could be obtained by inverse- dynamic method. These joint forces could then be used as referenced parameters to predict the motion trajectory of below- knee amputees by direct-dynamic method, where some of the parameters, such as the body mass and moment of inertia, are changed to that of amputees, also some constraints are added to limit the mobility of the model to emulate an artificial limb .