Mathematical model that predicts lower leg motion in response to electrical stimulation |
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Authors: | Perumal Ramu Wexler Anthony S Binder-Macleod Stuart A |
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Institution: | Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA. |
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Abstract: | Electrical stimulation of skeletal muscles of patients with upper motor neuron lesions can be used to restore functional movements such as standing or walking. Mathematical muscle models can assist in designing stimulation patterns that will enable patients to perform particular tasks more efficiently. In this study we extend our previous model to allow us to predict changes in knee joint angle in response to electrical stimulation of the human quadriceps femoris muscle. The model was tested both with and without inertial loads placed around the ankle joints of healthy subjects. Results showed that the model predicted the knee extensions with a RMS angle error that was generally
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