Functional Electrical Stimulation
Also written as: FES — Functional Electrical Stimulation
A technique that uses electrical impulses to activate muscles weakened or paralysed by neurological conditions, often used as an adjunct to or substitute for a mechanical orthosis.
Full Definition
Functional electrical stimulation (FES) applies low-level electrical currents to peripheral nerves or muscles to produce functional movement in individuals with motor impairments caused by conditions such as stroke, spinal cord injury, or multiple sclerosis. In orthotic services, FES devices may replace or complement traditional mechanical orthoses, particularly for foot drop management. Editors working on rehabilitation or orthotic literature must distinguish FES from simple neuromuscular electrical stimulation (NMES), which is used for strengthening rather than functional movement. The term should be spelled out in full on first use, followed by the acronym in parentheses.
Usage
Usage note: FES is acceptable after first full use. Editors should not conflate FES with TENS (transcutaneous electrical nerve stimulation), which is used for pain relief, not functional movement.
In Context
- "The patient was fitted with a functional electrical stimulation device as an alternative to a rigid ankle-foot orthosis." — Discharge summary
- "Ensure 'functional electrical stimulation' is spelled out in full at first mention, with (FES) immediately following." — Journal style guide note