Functional electrical stimulation (FES) is primarily used to:

• A. Provide sensory feedback
• B. Evoke muscle contractions in weak or paralyzed muscles
• C. Reduce inflammation
• D. Increase skin hydration

Answer: (B)

Functional electrical stimulation delivers electrical pulses to nerves or muscles to provoke a muscle contraction. This lets hard-to-activate or paralyzed muscles produce deliberate movements, enabling functional tasks like grasp or walking and supporting rehabilitation. The defining purpose is to elicit contractions that restore or assist motor function, rather than providing sensory feedback, reducing inflammation, or increasing skin hydration. By activating the muscle, FES helps maintain strength and enable purposeful movement during therapy and daily activities.