Could a single workout shield damaged muscles? a new trial investigates

This study explores whether a single bout of exercise can protect against muscle damage from a later session—a phenomenon called the repeated bout effect—in people with neuromuscular diseases. Unlike healthy individuals, patients with these conditions may experience muscle damage even with concentric exercise, so the trial tests both concentric and eccentric exercise. Researchers will measure changes in creatine kinase levels after two exercise sessions to see if the protective effect occurs. The findings could help design safer, more effective exercise programs for people with myopathy.