NMES, FES, and IFT re-educate which muscles?

• A. Stronger muscles
• B. Weakened muscles
• C. Cardiac muscle
• D. Skeletal muscles

Answer: (B)

Electrical stimulation for muscle re-education is used to bring back function in muscles that have lost strength or motor control after injury or neurological impairment. NMES and FES intentionally induce controlled contractions to retrain neural pathways and build strength in weakened skeletal muscles, helping patients relearn how to activate and coordinate the affected muscles during movement. Cardiac muscle isn’t the target for these modalities, and the goal isn’t to simply make muscles stronger when they’re already functioning well—the aim is to restore function in muscles that have become weakened. Interferential therapy is mainly used for pain relief and tissue healing, so the central idea here focuses on re-educating weakened skeletal muscles.