Gait analysis of adults' slips and falls based on COM equilibrium recovery response.
- Author:
Hailong SU
1
;
Dawei ZHANG
;
Jia LI
Author Information
1. School of Mechanical Engineering, Tianjin University, Tianjin 300072, China. suhailong@tust.edu.cn
- Publication Type:Journal Article
- MeSH:
Accidental Falls;
prevention & control;
Biomechanical Phenomena;
Computer Simulation;
Gait;
physiology;
Humans;
Models, Biological;
Postural Balance;
physiology;
Walking;
physiology
- From:
Journal of Biomedical Engineering
2012;29(1):18-22
- CountryChina
- Language:Chinese
-
Abstract:
Aiming at slips and falls occurred during adults' walking, a method was proposed that could predict slips and falls based on center of mass (COM) recovery response. This method, based on the Kane's equation dynamic walking model of the lower extremities, can be used to rapidly detect dynamic parameters in each gait cycle, and analyze any instantaneous balance status of slips and falls, and the characteristic COM curves may be accomplished on the basis of the measurement data. Moreover, causations, phases and processes about gaits of adults' slips and falls could be judged and analyzed by the characteristic curves. When the distance between the projection point of COM to base of support (BOS) domain is more than 0.012-0. 015m, human gaits have a tendency to slip and fall. When COM velocity response curve value is between 0.9-2. 1m/s, human gaits are normal and stable. The experimental results of slips and falls about the two different age groups showed that the method is able to predict and revise slips and falls by the COM recovery response characteristic curves.
