Side Lying Adduction/Abduction with Ring is a variation of the original Pilates exercise âÂÂSide Leg Lift Series.â Using the ring adds resistance to help tone the muscles of the inner and outer thighs, the adductors and abductors. Keeping your abdominal muscles engaged while performing side lying exercises helps strengthen the core as well. You sculpt long, lean legs and flatten your abs! Please visit www.PilatesOnFifth.com (for more info), www.UltimatePilatesWorkouts.com (for more videos) and www.Shop.PilatesOnFifth.com (for store).