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

Wall push-ups are a great exercise for working several shoulder muscles at once without putting too much pressure on them.

The researchers found that both dumbbell and cable lateral raises produced small to medium increases in lateral deltoid muscle thickness. Percentage changes ranged from 3.3 per cent to 4.6 per cent.

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 ...