Modeling and simulation of normal and hemiparetic gait

作     者：Lely A. LUENGAS Esperanza CAMARGO Giovanni SANCHEZ 

作者机构：Technological Faculty Universidad Distrital Francisco Jose de CaldasBogota Colombia Engineering Faculty Universidad de San Buenaventura BogotaColombia 

出 版 物：《Frontiers of Mechanical Engineering》 (机械工程前沿（英文版）)

年 卷 期：2015年第10卷第3期

页      面：233-241页

核心收录：

学科分类：0821[工学-纺织科学与工程] 080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 0802[工学-机械工程] 082104[工学-服装设计与工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by Universidad Distrital Francisco Jose de Caldas 

主　　题：bipedal gait biomechanics dynamic walking,gait model human gait hemiparetic human gait 

摘      要：Gait is the collective term for the two types of bipedal locomotion, walking and running. This paper is focused on walking. The analysis of human gait is of interest to many different disciplines, including biomecha- nics, human-movement science, rehabilitation and medicine in general. Here we present a new model that is capable of reproducing the properties of walking, normal and pathological. The aim of this paper is to establish the biomechanical principles that underlie human walking by using Lagrange method. The constraint forces of Rayleigh dissipation function, through which to consider the effect on the tissues in the gait, are included. Depending on the value of the factor present in the Rayleigh dissipation function, both normal and pathological gait can be simulated. First of all, we apply it in the normal gait and then in the permanent hemiparetic gait. Anthropometric data of adult person are used by simulation, and it is possible to use anthropometric data for children but is necessary to consider existing table ofanthropometric data. Validation of these models includes simulations of passive dynamic gait that walk on level ground. The dynamic walking approach provides a new perspective of gait analysis, focusing on the kinematics and kinetics of gait. There have been studies and simulations to show normal human gait, but few of them have focused on abnormal, especially hemiparetie gait. Quantitative comparisons of the model predictions with gait measurements show that the model can reproduce the significant characteristics of normal gait.