What is the Rotator Cuff?
A rotator cuff is a group of four muscles and the tendons associated with them across the shoulder joint.
The four muscles associated with the rotator cuff include – infraspinatus, teres minor, supraspinatus, and subscapularis.
As the name indicates, the rotator cuff impacts the dynamicity of your shoulder and helps it to rotate. While the bigger muscles like pectorals, lats, and deltoids control gross movements around the shoulders, the rotator cuff helps in stabilizing these movements.
The Importance of Rotator Cuff
The rotator cuff is responsible for exerting a downward and compressive force on the shoulder joint. Both these forces ensure that the head of the humerus (the bone that forms the joint at the shoulder) stays in the correct position.
Additionally, a rotator cuff provides the shoulder joint with the much-needed stability so that it can perform a range of motions and movements effortlessly.
However, your rotator cuff might get fatigued from excessive use, lack of endurance and weakness. All these conditions could interfere with the stability of the shoulder joint and make it unstable.
This often leads to pain, inflammation, and an injury, if not treated correctly.
Not only this, but weak rotator cuff could also give rise to various underlying conditions like – rotator cuff tendinitis, shoulder impingement, biceps tendonitis, rotator cuff tears, and sub-acromial bursitis.