Performing the: A Step-by-Step Tutorial Dumbbell Hammer Curl on Exercise Ball
Keeping your upper arms stationary, exhale and curl the weights while contracting your biceps, continue to raise the weights until your biceps are fully contracted and the dumbbells are at shoulder level.
Hold the contracted position for a brief moment as you squeeze your biceps.
Inhale and slowly begin to lower the dumbbells back to the starting position.
Repeat this movement for the desired amount of repetitions. Remember to keep your elbows close to your torso at all times.