Repetitive Strain Injury (RSI) and Occupational Overuse Syndrome (OOS) are broad terms for a group of upper extremity conditions. The general public is probably more familiar with the term Repetitive Strain Injury (RSI), whereas OOS may be more familiar in work and occupational therapy settings. Symptoms tend to occur due to activities with repetitive motions or sustained muscle contraction involving the hands, wrists, arms and shoulders. Commonly known ailments such as Tennis Elbow (Lateral Epicondylitis) , Golfer's Elbow (Medial Epicondylitis) and Carpal Tunnel Syndrome are specific conditions fitting with the RSI definition. Such conditions are easily aggravated and can become debilitating if left to progress. Early intervention is always best, and such conditions are easily treatable with the proper treatment approach. The full article on Repetitive Strain Injury (RSI) looks at possible causes, symptoms, prevention and treatment options. Article written by Terry Davis MChiro, ...