Kinesiology for the Body

Kinesiology
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Kinesiology
A rotator cuff comprises muscles and tendons surrounding the shoulder joint. These muscles and tendons maintain the humerus head in the shoulder joint. The rotator cuff has four muscles: the supraspinatus, subscapularis, the infraspinatus and the teres minor muscles (AnatomyZone, 2011). These muscles fused, forming musculotendinous at the shoulder joint to hold the humerus head in place. The tendons assist in rotating the arm shoulder socket, and thereby these tendons are cumulatively called the rotator cuff. The anatomical knowledge aids in understanding shoulder joint pain and associated injuries. More often, pain and injuries constitute the major reported complaints surrounding should joint and rotator cuff. Injury and degeneration are two primary causes of shoulder joint pain involving the rotator cuff. An injury to the rotator cuff, including a tear, occurs abruptly when falling on an outstretched hand. The degeneration of the rotator cuff develops over time due to repetitive activities. Rotator cuff tears can be elicited by aging, with degeneration of the tissues.
Tendons in the rotator cuff are at risk of injury because they move within a small tight space. Occasionally, the rotator cuff rubs against the acromion or a ligament. This rubbing causes friction le...