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.

The scapula (shoulder blade), clavicle (collarbone) and humerus (upper arm bone) rely heavily on the coordination of muscles like the rotator cuff, trapezius, serratus anterior and deltoids to ...

From your shoulders to your fingers, your arms have many moving parts: joints, bones, muscles, nerves, tendons and ligaments. Mysterious arm pain that seemingly comes out of nowhere can arise if ...

Arm circles are an easy but effective exercise to enhance shoulder flexibility. Stand with feet shoulder-width apart, extend ...

Upper back pain between the shoulder blades has many potential causes, including stress, injury, muscle strain, and underlying conditions. Learn more here.

From your shoulders to your fingers, your arms have many moving parts: joints, bones, muscles, nerves, tendons and ligaments. Mysterious arm pain that seemingly comes out of nowhere can arise if ...

Pull-ups are one of the most coveted bodyweight exercises for strengthening your upper body, namely your back, biceps and posterior deltoids (the rear shoulder muscles). For many, it’s a long ...

The biceps brachii, commonly just called biceps, "is a large, thick muscle of the ventral or front side of the upper arm," says Dr. Danielle Ponzio, an orthopedic surgeon at the Thomas Jefferson ...