Repetitive strain injury (RSI) is a general term used to describe the pain felt in muscles, nerves and tendons caused by repetitive movement and overuse.

It’s also known as work-related upper limb disorder, or non-specific upper limb pain.

The condition mostly affects parts of the upper body, such as the:

• forearms and elbows
• wrists and hands
• neck and shoulders

RSI is related to the overuse of muscles and tendons in the upper body.