Elbow Plank Twister is a variation of the Elbow Plank which is itself a variation of the original Pilates exercise Leg Pull Front. This variation further challenges the oblique abdominal muscles as the lower body rotates from side to side while the upper body remains stable. Elbow Plank Twister challenges the core, shrinks the waist and strengthens the shoulder girdle stabilizers. Please visit www.PilatesOnFifth.com (for more info), www.UltimatePilatesWorkouts.com (for more videos) and www.Shop.PilatesOnFifth.com (for store).