What is tennis elbow? Tennis elbow is a repetitive strain injury, also known as lateral epicondylosis. Lateral refers to the outside part of the arm when standing upright with your arms at the sides. Tennis elbow is often referred to as outer (lateral) elbow pain or inside (medial) elbow pain but often originates from overuse of the forearm muscles that straighten the fingers and wrist, which leads to pain in the elbow and forearm. Over time, this repetitive overuse may damage tendons, the fibrous cords that connect muscles to bones, or other muscles. The tendons that are attached at the elbow become swollen and inflamed. Simple movements like shaking hands or turning a door knob can cause moderate to acute pain. Tennis elbow pain is equally common in men and women but occurs most often in people from age 30 to 50. What Causes Tennis Elbow? Lateral epicondylosis is one of the most common arm disorders, which can lead to a significant decrease in movement and function. The area around the bone of the outer elbow becomes irritated and inflamed by sports or other repetitive everyday activities. Many people who have never played tennis will develop tennis elbow. Often, this inflammatio...
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