Neuromuscular Electrical Stimulation (NMES)

Neuromuscular electrical stimulation (NMES), is a modality used to increase motor unit recruitment of an affected muscle.

NMES is most commonly utilized on the quadriceps muscle following knee surgery, but other common applications include the calf, hamstrings, shoulder, and glutes.

Following surgery, muscle activation often becomes inhibited as a result of pain and swelling. NMES electrodes are placed on the skin overtop the muscle being stimulated. It sends an electrical impulse into the muscle that simulates the action potential that comes from the central nervous system, telling the muscle to contract.

NMES allows for a more rapid return to normal muscle function. It is also used to reduce muscle atrophy when a limb is immobilized or non-weightbearing, and has been shown to improve strength and muscle activation in healthy subjects.