Condition · Shoulders

Rotator cuff issues

The rotator cuff's job isn't to lift your arm — it's to hold the ball of the shoulder centred in its socket while the bigger muscles do the lifting. Lose that control during elevation and the joint stops being a joint and starts being a collision. That's why cuff pain is sharp, why it comes with weakness, and why it wakes you up when you roll onto it. Restoring external rotation control is what gives the cuff its job back.