What Is Repetitive Stress Injury (RSI)?
Tennis elbow, runner’s knee, and writer’s cramp are common names for repetitive stress injuries (RSIs), which result from repeated movements that stress the tendons, ligaments, joint capsules, fascia (FASH-ee-a), and other soft tissues that surround or attach to muscles and bones. Repetitive stress injuries can cause inflammation* of the neck, shoulders, arms, wrists, hips, legs, and ankles.