WHAT IS A ROTATOR CUFF TENDINITIS or shoulder impingement?
Shoulder impingement is the pinching of a tendon or bursa between the acromion and the humeral head. This can be caused by: Anatomy – The actual shape of the bones in your shoulder or the presence of a bone spur in the shoulder may cause an impingement Weak muscles – The muscles in your shoulder (the rotator cuff) and in your mid-back (called the scapular stabilizers) can cause improper movement of the shoulder, producing pinching of the tendons and bursa. Shoulder instability – Instability at the shoulder joint may also cause shoulder impingement symptoms. Usually, there is enough room between the acromion and the rotator cuff so that the tendons slide easily underneath the acromion as the arm is raised. But each time the arm is raised, rubbing does occur. This rubbing, or pinching action, is called impingement. Impingement occurs to some degree in everyones shoulder, caused by day to day activities that we do with the arm above shoulder level. But continuously working with the arms r
