Harvard Health Letter
4 stretches to keep your shoulders in shape
4 stretches to keep your shoulders in shape Keeping your shoulder muscles flexible will help prevent injury. The shoulder is the bodyís most complicated joint. Itís where the ends of the collarbone, upper arm bone, and shoulder blade meet. And itís prone to arthritis (a wearing away of the cartilage between the bones), as well as tears or tendinitis (inflammation) in the rotator cuff ó the group of tendons that helps you raise and rotate your arm.