What are your deltoid muscles used for?

The deltoid muscles are the three muscles that form the rounded contour of the shoulder. Their main function is to lift(abduct) the arm to the side of the body. They also help in stabilizing and rotating the shoulder joint.

Here are the deltoid muscles and their specific functions:

-Anterior Deltoid: Abduction of the arm at the shoulder joint. This is the movement of the arm away from the body to the front.

-Middle Deltoid: Abduction of the arm in the frontal plane. This is lifting the arm out to the side.

-Posterior Deltoid: Extension (backward movement) of the arm at the shoulder joint. It also assists in abduction and horizontal flexion of the arm.

Additional Functions of Deltoid Muscles:

-Shoulder Flexion: Assist the pectoralis major muscle in raising arm forward

-Shoulder Extension: Assist the latissimus dorsi muscle in pulling arm backward.

-Scapular Fixation: Help to stabilize the shoulder blades

Strengthening the deltoids can improve shoulder mobility, strength, and stability. This is important for everyday activities such as lifting objects, reaching overhead, and pushing or pulling.