What is a repetitive motion injury (repetitive stress injury)?
Repetitive motion injuries, also called repetitive stress injuries, are temporary or permanent injuries to muscles, nerves, ligaments, and tendons caused by performing the same motion over and over again. One of the most common repetitive motion injuries is carpal tunnel syndrome. This disorder occurs when the median nerve, which travels from the forearm to the hand through a “tunnel” in the wrist, is compressed by swollen, inflamed ligaments and tendons. It is often seen with people who use computer keyboards or work on assembly lines. The injury can be quite painful and can also cause numbness, clumsiness, and a loss of motion, flexibility, and strength in the area. It can worsen over time without treatment, and can result in a complete loss of function.