List a common sign of impingement syndrome.

A common sign of impingement syndrome is pain during overhead activities. This condition occurs when the tendons of the rotator cuff become irritated or inflamed as they pass through the shoulder joint, particularly when the arm is lifted above shoulder level. Such movements can cause the inflamed tendons to become compressed against the bone of the shoulder, leading to significant discomfort and often a sharp pain during activities like reaching up, throwing, or lifting.

The relationship between overhead movements and exacerbation of symptoms is crucial for both diagnosis and management of impingement syndrome. Recognizing this sign can help guide appropriate treatment strategies, which may include rest, physical therapy, or other interventions to alleviate the pain and restore proper function to the shoulder.