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MVC 상태에서의 무릎관절 모멘트 추정을 위한 모델 개발

Development of a Model for the Estimation of Knee Joint Moment at MVC

  • 남윤수 (강원대학교 공과대학 기계.메카트로닉스공학부) ;
  • 이우은 (강원대학교 대학원 메카트로닉스공학과)
  • Nam, Yoon-Su (School of mechanical and mechatronics engineering, College of engineering, Kangwon National Univ.) ;
  • Lee, Woo-Eun (Department of mechatronics engineering, Graduate school, Kangwon National University)
  • 발행 : 2008.06.30

초록

This paper introduces a method of estimating the knee joint moment developed during MVC. By combining the Hill-type muscle model and analytic results on moment arm and musculotendon length change as a function of hip and knee joint angle, the knee joint moment at a specific knee joint angle during MVC is determined. Many differences between the estimated results and the experimental data are noted. It is believed that these differences originate from inaccurate information on the muscle-tendon parameters. The establishment of exact values for the subject's muscle parameters is almost impossible task. However, sensitivity analysis shows that the tendon slack length is the most critical parameter when applying the Hill-type muscle model. The effect of a change of this parameter on the muscle length force relationship is analyzed in detail.

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참고문헌

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