Key shoulder muscles Alex Ford/Insider The shoulder muscles include both extrinsic and intrinsic muscles. The extrinsic muscles extend from the torso to the shoulder bones. They include: ...

2. JAVELIN PRESS Hold an EZ bar in your right hand just above your shoulder. Extend your arm and drive the bar above you, then lower it back down to your shoulder and repeat.

Scaption: A plane of shoulder motion that lies halfway between the sagittal and frontal planes, commonly used in rehabilitation to maximise safe muscle activation.