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Modeling Upper Limb Dynamics During Perturbation Pulse with COM Acceleration Feedback

This study investigates the response of the upper limb to perturbation pulses in different directions, analyzing muscle-induced joint moments and center of mass acceleration feedback. It focuses on stability against external disturbances. The findings may contribute to understanding motor control mechanisms and rehabilitation strategies.

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Modeling Upper Limb Dynamics During Perturbation Pulse with COM Acceleration Feedback

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  1. Figure 5. (a) Two-arm upper-limb loading, (b) center of mass (COM)acceleration feedback, and (c) muscle-induced joint moments tostabilize against perturbation pulse (15% body weight, 250 ms)applied at model COM in either forward or side (i.e., right) direction. Add = adduction, Ank = ankle, BW = body weight, Dorsiflex = dorsiflexion, Flex = flexion, L = left, R = right-side. Geng B, Yoshida K, Petrini L, Jensen W. Evaluation of sensation evoked by electrocutaneous stimulation on forearm in nondisabled subjects. J Rehabil Res Dev. 2012; 49(2):297–308. http://dx.doi.org/10.1682/JRRD.2010.09.0187

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