Rather than really working the biceps, hammer curls stimulate the brachialis and brachioradialis. The brachialis muscle is located beneath the biceps while the brachioradialis sits along the top ...

A well-developed brachialis pushes the bicep up, while the brachioradialis connects the forearms with the upper arms. Hammer ...

“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 ...