Title :
A stability analysis of a standing posture in paraplegia
Author :
Kagawa, Takahiro ; Fukuda, Hiroshi ; Uno, Yoji
Author_Institution :
Dept. of Information & Comput. Sci., Toyohashi Univ. of Technol.
Abstract :
A paraplegic patient can keep a standing posture called ´C-posture´ with an orthosis. The foot joints are fixed in dorsiflexion, and the knee joints are fixed in maximum extension with the orthosis. The feature of the C-posture is that the body center of mass is located behind the hip joints. In the present study, assuming the C-posture to be an equilibrium attractor in a paraplegic musculo-skeletal system, we discuss the mechanism and stability of the C-posture on the basis of measured and simulated standing postures in paraplegia. Measurement and simulation results suggest that the C-posture can be regarded as a stable equilibrium attractor in the musculo-skeletal dynamics of paraplegics
Keywords :
biomechanics; handicapped aids; orthotics; C-posture; equilibrium attractor; paraplegic musculo-skeletal system; paraplegic patient; stability analysis; standing posture; Atrophy; Foot; Hip; Knee; Muscles; Particle measurements; Position measurement; Shoulder; Stability analysis; Wheelchairs;
Conference_Titel :
Systems, Man and Cybernetics, 2004 IEEE International Conference on
Conference_Location :
The Hague
Print_ISBN :
0-7803-8566-7
DOI :
10.1109/ICSMC.2004.1398381
