Fig. 1

Generalized selective neural stimulation system implantation layout. Multi-contact cuff electrodes are sutured around the femoral nerves to elicit knee extension. Additional intramuscular or epimysial electrodes activate the gluteal and sciatic nerves for hip extension via the gluteus maximus and hamstrings. Electrodes connect to a subcutaneous implanted pulse generator sutured to the abdominal fascia that is powered by and communicates with an external control unit (ECU) via an inductive link with a radiofrequency coil taped to the skin surface. The ECU is programmed with the desired stimulation levels and timing patterns for a particular movement and relays them to the stimulator