Hsiang S M, Chang C C, McGorry R W
Liberty Mutual Research Center for Safety and Health, Hopkinton, MA 01748, USA.
J Biomech. 1999 Aug;32(8):871-6. doi: 10.1016/s0021-9290(99)00060-3.
Given a lifting task with predetermined starting and ending positions, the angular trajectories are usually very consistent with a distinctive pattern. This paper derives a set of equations that can describe the joint trajectories during a para-sagittal lifting task. Three optimal motion patterns were also expressed by the polynomials: minimal hand jerk, minimal center of gravity (CG) jerk, and minimal muscle utilization rate (MUR). The variability of the joint movements were synthesized by overlapping the optimal patterns.
对于具有预定起始和结束位置的提升任务，角轨迹通常非常一致且具有独特模式。本文推导了一组能够描述矢状面旁提升任务期间关节轨迹的方程。三种最优运动模式也由多项式表示：最小手部急动度、最小重心（CG）急动度和最小肌肉利用率（MUR）。通过叠加最优模式来综合关节运动的变异性。
