What is a Hammer Curl? The Hammer Curl is a quintessential weightlifting exercise that targets the biceps and forearms. The exercise is performed with dumbbells, and it strengthens the three largest muscles along the front of your upper arms.

What does a hammer curl do?

Hammer curls target the long head of the bicep as well as the brachialis (another muscle in the upper arm) and the brachioradialis (one of the key forearm muscles). The hammer curl is a relatively simple exercise that beginners can quickly master.

Are hammer curls worth it?

Hammer Curls are important because of the way they work your arms. ... Along with the biceps, these two muscles work together to flex the arm at the elbow. Hammer Curls help build the brachialis and brachioradialis in a way other curl variations simply do not, allowing you to develop additional strength and size.