Paper Title:
Study of Rehabilitation of Injured Knee Joint Applying Chaotic Theory in Human Body Motion
  Abstract

Gait analysis is essential to identify accurate cause and knee condition from patients who display abnormal walking. Traditional linear tools can, however, mask the true structure of motor variability, since biomechanical data from a few strides during the gait have limitation to understanding the system. Therefore, it is necessary to propose a more precise dynamic method. The chaos analysis, a nonlinear technique, focuses on understanding how variations in the gait pattern change over time. Healthy eight subjects walked on a treadmill for 100 seconds at 60 Hz. Three dimensional walking kinematic data were obtained using two cameras and KWON3D motion analyzer. The largest Lyapunov exponent from the measured knee angular displacement time series was calculated to quantify local stability. This study quantified the variability present in time series generated from gait parameter via chaos analysis. Gait pattern is found to be chaotic. The proposed Lyapunov exponent can be used in rehabilitation and diagnosis of recoverable patients.

  Info
Periodical
Key Engineering Materials (Volumes 342-343)
Edited by
Young-Ha Kim, Chong-Su Cho, Inn-Kyu Kang, Suk Young Kim and Oh Hyeong Kwon
Pages
581-584
DOI
10.4028/www.scientific.net/KEM.342-343.581
Citation
B. Y. Moon, K. Son, J. H. Park, "Study of Rehabilitation of Injured Knee Joint Applying Chaotic Theory in Human Body Motion", Key Engineering Materials, Vols. 342-343, pp. 581-584, 2007
Online since
July 2007
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Price
$32.00
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