Abstract-Because most joints in the human arm are crossed by a number of muscles which exceeds the number of degrees of freedom for those joints, the motor system can use a variety of muscle activation patterns for the same torque in each joint. We have developed a model to estimate the contribution of individual muscles to the total torque in a joint based on intramuscular EM G recordings, EM G activity recorded with surface electrodes may be contaminated with cross-talk from other muscles. Moreover, it may …
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