One Arm Hammer Curls How to do: 1. Hold dumbbells 2. Keep back straight, head up, hips and legs locked 3.Start with dumbells at arms length, palms in. 4. Begin curl with palms in until past thighs, then turn palms up for the remainder of curl to shoulder height. 5. Keep palms up while lowering until past thighs then turn palms in. 6. Keep upper arms … [Read more...] about Biceps One Arm Hammer Curls