Cause
Overuse of the forearm muscles using a repeated twisting motion is
the most common cause of
tennis elbow. These movements are common to various
occupations such as carpentry or plumbing, and many daily activities such as
yard work and lifting objects. Racquet sports, swimming, and throwing sports
(such as baseball) can also lead to tennis elbow.
See an illustration of
tennis
elbow
.
Tennis elbow injuries can result from:
- Overuse. Repeated movements that involve
twisting of the elbow cause small tears in the tendon, weakening it. Overuse
depends on how hard or how long you do something.
- A single
accident, such as a direct hit to the side of the elbow (lateral epicondyle),
or falling on an outstretched arm.
In sports, tennis elbow can also result from using the wrong type
of equipment or improper technique. For example, a tennis racquet with a grip
too large or small for your hand can put a lot of pressure on your tendon.
Using a backhand swing where your elbow is ahead of the rest of your arm can
also lead to tendon damage.