Dynamic Principles of Center of Mass in Human Walking
Dynamic Principles of Center of Mass in Human Walking
复制标题
人类行走质心的动态原理
DOI：
10.9734/bbj/2013/4724
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
C. Lv
中科院分区：
文献类型：
--
作者：
Yifang Fan;M. Loan;Yubo Fan;Zhiyu Li;C. Lv
We present results of an analytic and numerical calculation that studies the relationship between the time of initial foot contact and the ground reaction force of human gait and explores the dynamic principle of center of mass. Assuming the ground reaction force of both feet to be the same in the same phase of a stride cycle, we establish the relationships between the time of initial foot contact and the ground reaction force, acceleration, velocity, displacement and average kinetic energy of center of mass. We employ the dispersion to analyze the effect of the time of the initial foot contact that imposes upon these physical quantities. Our study reveals that when the time of one foot's initial contact falls right in the middle of the other foot's stride cycle, these physical quantities reach extrema. An action function has been identified as the dispersion of the physical quantities and optimized analysis used to prove the least-action principle in gait. In addition to being very significant to the research domains such as clinical diagnosis, biped robot's gait control, the exploration of this principle can simplify our understanding of the basic properties of gait.
DOI：
10.1115/1.1427703
发表时间：
2002-02-01
影响因子：
1.7
作者：
Kuo, AD
通讯作者：
Kuo, AD
影响因子：
2.4
作者：
Donelan, JM;Kram, R;Kuo, AD
通讯作者：
Kuo, AD