They might not have anything else on their mind but big gains for their big guns, with plenty of curl-only workouts and mirror flex selfies ... Training your arm muscles isn't super complicated ...

“When people flex their biceps, or want to look good in a T-shirt, that’s the muscle your eye is drawn to. Whereas the hammer curl brings the brachialis muscle and your forearm much more into ...

Outward arm action in a jumping jack Rotator cuffs A group of stabilising muscles of the shoulder which helps to prevent dislocation and allows the shoulder to rotate the humerus around its own ...