Upper extremity injuries typically fall under one of two categories: acute or overuse. Acute injuries are caused by a single specific incident, such as a strain or tear. Overuse injuries are caused by excessive repetitive movements over time. Some of the most common types of upper extremity injuries include: • TENNIS ELBOW. While this term is colloquially referred to as “tennis elbow,” it can also be caused by other sports and activities, including softball, baseball, raking leaves, and even excessive typing on a computer. Tennis elbow is an overuse injury that results in inflammation of the tendons in the forearm, making it difficult to lift your arm. • GOLFER’S ELBOW. This is another colloquial term, used to describe an overuse injury causing muscle inflammation inside the elbow. It is also sometimes referred to as “Little Leaguer’s Elbow.” This injury runs from the bony point of your elbow and can stretch down your forearm, making it difficult to extend or lift your arm. Sports and activities that generally result in golfer’s elbow include golf, baseball, softball, bowling, and gardening. • FLEXOR TENDINITIS. This is an overuse injury that causes swelling in the tendons that control your hand movement, making it difficult to bend your fingers and move your hand or elbow. Flexor tendinitis is typically associated with sports that require constant throwing, such as softball, baseball, football, or shot put. • FROZEN SHOULDER. Frozen shoulder can result from either an acute injury or an overuse injury. It occurs when the tissue in your shoulder thickens or scar tissue forms, causing your shoulder to feel as if it’s being “squeezed” and making it difficult to move. Common Causes Of THROWING & UPP EXTREMITY INJU
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