Repetitive strain injury is any of a group of painful medical disorders caused by performing a similar activity over and over again. Such injuries, often called RSI’s, are responsible for more than half of all workplace illnesses. Other names for such disorders include cumulative trauma disorders (CTD’s) and repetitive stress injuries, also shortened to RSI’s.
Anyone who regularly performs a repetitive task is at risk of developing an RSI. Computer users, meat cutters, and assembly-line workers often develop such problems. The number of RSI sufferers increased greatly during the late 1900’s, possibly due to increased computer use. Dentists, cashiers, and musicians also frequently complain of symptoms.
Carpal tunnel syndrome, a wrist disorder, is the most common RSI. Others include de Quervain’s disease (inflammation of the tendon sheaths in the thumb) and lateral epicondylitis (tennis elbow). Workers may also suffer from numbness in the fingers; pain in the arms, neck, and back; and aching muscles.
Prevention is the best treatment. An expert in ergonomics (the science of designing objects and environments to meet the physical and psychological needs of people) can recommend changes to the work area. Employees should be taught proper posture and use of tools and machines. They also should be encouraged to maintain a reasonable pace and take rest breaks. Medical treatment may be necessary in some cases. Anti-inflammatory drugs or steroid injections may be prescribed. Surgery may be necessary if other treatments fail.
