Evaluation of a Pose-Shared Synergy-Based Isometric Model for Hand Force Estimation: Towards Myocontrol

• Post by: info@mxcs.it
• 27 January 2021
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In this work the authors investigated whether the muscle synergies concept
could improve the isometric hand force estimation. Electromyographic (EMG)
activity from 9 arm muscles and hand forces applied at the Light-Exos Exoskeleton
end-effector were recorded during isometric contractions in several workspace
points lying on the parasagittal plane crossing the shoulder joint. The muscle synergies
were extracted in two different ways according to the statements that the muscle
primitives are ‘Arm Pose Related’ or ‘Arm Pose Shared’. From the pre-processed
EMG signals the authors then estimated the hand forces using three methods. The
results showed that the muscle synergy concept improves the isometric force estimation
paving the way for a synergy-based myoelectric control.