A study on the lifting posture predictivity of biomechanical cost functions

인체역학적 비용함수들의 lifting 자세 예측도 비교

  • 최재호 (대진대학교 산업공학과) ;
  • 박우진 (포항공과대학교 산업공학과) ;
  • 정의승 (포항공과대학교 산업공학과)
  • Published : 1996.04.01

Abstract

Human posture prediction and motion simulation methods try to solve inverse kinematic problems using the optimization technique based on the concept of minimum principle. It is very important to select a cost function which relfects the human posture acurately. In this study, lifting postures were predicted using the five biomechanical cost functions and compared with real human postures in order to evaluate the predictivities of the cost functions. The result showed that all the biomechanical cost functions used in this study could not predict lifting postures accurately. The cost function which minimizes the sum of joint moments showed the smallest mean prediction error, while the one which minimizes the MUR showed statistically better performance.

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