보행시 전신 주요 관절의 카오스 지수 분석

Chaos Analysis of Major Joint Motions for Young Males During Walking

  • 박정홍 (부산대학교 기계기술연구소) ;
  • 손권 (부산대학교 기계공학부) ;
  • 서국웅 (부산대학교 체육교육과) ;
  • 박영훈 (부산대학교 체육교육과)
  • 발행 : 2007.05.30

초록

To quantify irregular body motions the time series analysis was applied to the gait study. The motions obtained from gait experiment are complex to exhibit nonlinear behaviors. The purpose of this study is to measure quantitatively the characteristics of the major six joints of the body during walking. The gait experiments were carried out for eighteen young males walking on a motor driven treadmill. Joint motions were captured using eight video cameras, and then three dimensional kinematics of the neck and the upper and lower extremities were computed by KWON 3D motion analysis software. The largest Lyapunov exponent was calculated from the time series to quantify stabilities of each joint. The results provides a data set of nonlinear dynamic characteristics for six joints engaged in normal walking.

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