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An experimental model was used to study issues that are relevant to the use of electrical stimulation to help paralyzed individuals walk. Modulated stimulation sequences for the quadriceps muscles were manually selected using an iterative trial-and-error procedure to cause the knee angle to follow a specific movement pattern. Four paraplegic subjects were(More)
A fixed-parameter, discrete-time, first-order, feedback control system is described for regulating grasp during electrical stimulation of paralyzed muscles of the hand. The stiffness of the grasp (the relationship between grasp force and grasp opening) is kept constant by linearly combining force and position feedback signals. Thus, a single continuous(More)
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