- Home | Resources | FAQ | Contact Us | About This Site RSI-UK Mailing List What is RSI RSI stands for Repetitive Strain Injury. It is used as an umbrella term to refer to various kinds of work-related musculoskeletal injuries - for instance, carpal tunnel syndrome, tendonitis, tenosynovitis, bursitis, epicondylitis, and others. Such injuries are also known as Cumulative Trauma Disorders ( CTD ...www.rsi-uk.org.uk