Dumbbell Curl

Dumbbell curl is a simple strength exercise for building arm muscle and strength. It trains every muscle on the front of the arm. You can do the exercise in several ways, such as alternating arms, curling both arms together, or changing grips and variations to emphasize different parts of the biceps. Because each arm works on its own, you can spot and correct weakness or imbalance, which helps support more even muscle development.