Wearing an elbow brace when playing tennis can reduce the likelihood of getting tennis elbow, which is also known as lateral epicondylitis. A brace can also help an injured arm to heal. Tennis elbow is usually caused by the repetitive strain on the wrist as it is bent backwards against the resistance from hitting a tennis ball. Although there are many one-size-fits-all elbow braces on the market, it is best to find one in your size. Once you buy the right-sized brace, it is important to wear it properly.
Undo the Velcro straps.
Slip the brace on your forearm.
Adjust the brace so the forearm splint is on the side of your arm below your thumb. The top Velcro strap should be approximately 2 inches below the elbow.
Fasten the straps securely around your forearm to where it feels snug, but is not cutting off your circulation.
Wear the brace 24 hours a day, 7 days a week for a month, including while you sleep. If the pain is not reduced, seek help from a medical doctor or physical therapist.