What is Impingement Syndrome?

This pinching most commonly happens between the head of the upper arm bone (humerus) and the arch of bone underneath (acromion). Repeated overhead motions often contribute to Impingement disorder by causing inflammation in the tight space beneath the acromion.

Causes of Impingement disorder

The primary cause Impingement Syndrome disorder is repetitive shoulder motions done overhead, such as serving in tennis, swimming, throwing a ball, or anything that involves lifting the arms above the head on a regular basis. Some additional factors that can increase the risk include:

- Anatomic Factors: A curved or hooked acromion process that narrows the space for tendons and other soft tissues. Genetics can play a role here.

- Injuries: Prior shoulder dislocations, fractures, or rotator cuff tears. Damage to tissues leaves less room for movement.

- Strength Imbalances: Weak rotator cuff and scapular stabilizer muscles are less able to properly control the humerus. This allows it to migrate higher up into the space.

- Overuse: High-intensity activities like weightlifting or manual labor done in excess can gradually inflame tissues through repetitive stress.

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