Tendinitis (ten-DIN-eye-tus) is the inflammation of a tendon (a
fibrous, cordlike connective tissue that joins and transfers
power from a muscle to a bone). It is a common problem in both
young and older people, but musicians, athletes, and people who
do repetitive motions at work are particularly susceptible.
Severe cases can cause a person to lose his or her ability to
work or play. It is most often caused by overuse or improper
posture during work or sports; using one's body in an awkward
position can often cause the disorder, so proper work ergonomics
are an important element of prevention, as are proper stretching
and warming up before strenuous activity. However, tendinitis
may also be caused by an infection of the sheath surrounding the
tendon. It may also be found as a complication of disorders such
as rheumatoid arthritis, psoriasis, or diabetes. The symptoms of
tendinits include pain, swelling, and stiffness. Mild cases may
cause minor discomfort and are usually temporary. Severe cases,
which can be