Difficulty Level: Beginner
Muscle Groups Worked: Biceps
Movement: Lie back on your stability ball at an incline bench and hold a dumbbell in each hand. Let your arms hang straight down on both sides with your palms facing in toward each other. Slowly curl the weight in your left hand as if to touch it to your left shoulder. While you are curling the dumbbell, slowly turn (i.e., supinate) your wrist outward so that your thumb points away from your body. Squeeze your bicep at the top of the movement for a one-count and then slowly return to the start position and repeat with your right arm.