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Human elbow joint torque estimation during dynamic movements with moment arm compensation method

Abstract In this paper we propose a method for human joint torque estimation with surface-electromyogram (sEMG) during dynamic joint movements. sEMG measurement is non-invasive and costs less than external force measurement. Typical torque estimation methods from EMG are available for isometric movements. Our method works also during dynamic movement and outputs the torque time-history data. Their proposed torque estimation method is tested with one subject. We measured sEMG related to the flexion-extension of the elbow joint torque computed. The root mean square error is lower than 5 % of the maximum torque. This result is comparable to recent research on isometric movement.