The equipment you choose can play a role in reducing your tennis elbow symptoms. Physical therapy devices specifically for tennis elbow, as well as the tennis equipment you buy at your local tennis shop, play a role in reducing tennis elbow pain.
Counterforce Braces
Counterforce braces compress the forearm muscles about an inch below the elbow, [...]

According to S.P. Tyrer the answer to the question what is tennis elbow is explained in his Pain Reviews, volume 6, 1 July 1999, pp. 155-166 published by Hodder Arnold Journals. It is explained as a repetitive strain injury.
“Repetitive strain injury is mainly caused by abnormal postures and prolonged periods of work, changes in [...]

Tennis elbow, also called lateral epicondylitis is a very common injury that results from overuse, injury, or strain of the tendon that attaches the forearm muscles to the boney part of the outside of the elbow. Called tennis elbow because tennis players are prone to getting it (50% of tennis players may have this condition), [...]

Tennis elbow is an overuse injury that affects many people at some point in their lives. Most often, tennis elbow symptoms are caused by a repetitive motion of the wrist, forearm, and elbow, from activities such as tennis and other racquet sports, laborers, and assembly-line workers, among others.
The condition is called tennis [...]