Your deltoid muscles make up a main muscle group in your upper body. They’re connected with many other muscles and bones in your upper back, neck, and shoulder region and are extremely mobile. They ...

Because our demand for shoulder movement remains, a weakening of the deltoid places additional demands on the rotator cuff muscles. This is the time when rotator cuff injury risk is the highest, ...

The shoulder muscles are responsible for maintaining the widest range of motion of any joint in your body. This flexibility is also what makes the shoulder prone to instability and injury. Muscles, ...

The deltoid is a round muscle that goes around the top of your upper arm and shoulder. The main function of the deltoid is to help you lift and rotate your arm. There are three parts of the deltoid ...

Want to max out the muscle growth of your shoulders? These exercises will work the anterior, medial and posterior portions of ...