Functional Electrical Stimulation
Also written as: FES
A rehabilitation modality that uses electrical current applied to nerves or muscles to produce or augment functional movement in patients with neurological impairment.
Full Definition
Functional electrical stimulation (FES) uses low-level electrical currents to activate muscles that are weakened or paralysed due to upper motor neuron injury, producing purposeful, coordinated movement. Applications in PM&R include FES cycling, foot-drop stimulators, and hand-grasp systems for SCI or stroke patients. It is distinct from transcutaneous electrical nerve stimulation (TENS), which targets sensory nerve fibres for pain relief rather than producing functional movement. FES is documented in therapy treatment plans, physiatric prescriptions, and research protocols. Editors must not substitute FES for TENS or NMES (neuromuscular electrical stimulation) without clinical verification, as these terms reflect distinct mechanisms and therapeutic goals.
Usage
Usage note: Do not conflate with TENS or NMES; each acronym denotes a distinct modality with different mechanism and clinical indication. Define FES on first use.
In Context
- "Functional electrical stimulation was incorporated into the gait retraining program to address foot drop in a patient with incomplete SCI." — Physical therapy treatment plan
- "The physiatric prescription for functional electrical stimulation included parameters for electrode placement, pulse width, and stimulation frequency." — Physiatric prescription document