12/12/2025
Most people train their rotator cuff the wrong way - isolating one muscle and wondering why their shoulder still hurts.
The rotator cuff isn’t a single movement or a single muscle; it’s a compression system made up of four muscles that work synergistically to keep the humeral head centered as you lift, reach, press, and rotate. When these muscles don’t coordinate, the joint compensates with shoulder hiking, pinching, or scapular squeezing, which is why so many “rotator cuff exercises” fail.
In this video, we break down how the cuff actually works, why proper humeral rotation matters, and the exact drills that force clean mechanics so you can finally improve shoulder stability, strength, and pain.