Your deltoid is a large, triangle-shaped muscle that supports the movement and stability of the shoulder joint. This muscle covers the upper arm and forms the rounded contour of the shoulder.

Trainers share how to make the most of arm exercises without weights, plus our favorite moves that help improve mobility and ...

Mastering the shoulder press is a surefire way of building solid shoulders, strengthening an often weak area and generally bulking up the top of the arms for a desirable ‘V-shaped’ physique.

Discover three powerful shoulder-toning exercises that require just a pair of dumbbells, perfect for creating defined shoulders that look amazing in your outfit ...

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 ...