It is due to excessive use of the muscles of the back of the forearm. Typically this occurs as a result of work or sports classically racquet sports. About 2% of people are affected. Those 30 to 50 years old are most commonly affected.
Signs and symptoms
Tennis elbow is a type of repetitive strain injury resulting from tendon overuse and failed healing of the tendon. the extensor carpi radialis brevis muscle plays a key role.
Early experiments suggested that tennis elbow was primarily caused by overexertion. However, studies show that trauma such as direct blows to the epicondyle, a sudden forceful pull, or forceful extension cause more than half of these injuries. Repeatedly mis-hitting a tennis ball in the early stages of learning the sport causes shock to the elbow joint and may contribute to contracting the condition
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