A Look at The Shoulder
The shoulder complex is labelled as such for a reason; it’s pretty complex.
All you need to know is that the shoulder is a ball and socket joint that heavily relies on the surrounding ligaments and musculature for support in movement and stability.
The shoulder joint provides us with more mobility than other joint: Abduction, Adduction, Horizontal Abduction, Horizontal Adduction, Circumduction, Flexion, Extension, Internal Rotation and External Rotation.
Nothing is more vital to the shoulders functioning smoothly in these movements than the rotator cuff muscles and the shoulder blade (scapula).
The Rotator Cuff
The shoulder has 4 main muscles that make up the rotator cuff and act as the drivers behind movement (and in turn healthy functioning of the shoulder) . The Supraspinatus, Infraspinatus, Teres Minor and Subscapularis.
All four of these muscles work together to stabilise the top of the humerus in the shoulder joint.