Low activity. Tendonitis is an overuse injury. If you drastically increase your activity level over a short period of time, you may experience pain around your joints.
Tendonitis. Age as people get older, their tendons become less flexible — which makes them easier to injure. Occupations tendinitis is more common in people whose jobs involve: repetitive motions frequent overhead reaching forceful exertion sports you may be more likely to develop tendinitis if you participate in certain sports that involve repetitive motions.