Your deltoid is a large, triangle-shaped muscle that supports the movement and stability of the shoulder joint. This muscle ...

Physiologist Dr. Mike Israetel offered his top five exercises for delt gains, revealing tips and insights to help you achieve ...

Deltoid Abduction of the shoulder (moving the arm outwards and away from the body) Outward arm action in a jumping jack Rotator cuffs A group of stabilising muscles of the shoulder which helps to ...