This exercise incorporates balance along with a bicep curl.
Grasp a dumbbell in each hand with a palms up grip. Place the top of one foot behind you on a Stability Ball (see illustration) as if you were stretching your leg. Keep your back straight and your abs drawn in. Bring your arms down in front of your legs. Raise your arms up, curling and contracting your biceps. Lower your arms and return to starting position and switch legs. TIPS