Dumbbell hammer curls are a great biceps exercise because the neutral grip palms facing each other changes how the arm muscles contribute compared with a traditional supinated curl.
⬆️ Builds overall upper-arm thickness
Hammer curls train the biceps while placing strong emphasis on the brachialis, a muscle underneath the biceps that can make the upper arm appear thicker as it develops.
👊 Improves grip strength
Holding the dumbbells in a neutral position challenges the hands and forearms, which can carry over to rows, deadlifts, pull-ups, and other pulling movements.
💪 Can feel more comfortable on the wrists
The neutral grip keeps the wrists in a natural position and may be more comfortable for some lifters than fully rotating the palms upward.
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