www.PilatesOnFifth.com (for more info), www.Shop.PilatesOnFifth.com (for store) and www.UltimatePilatesWorkouts.com (for more videos). Hundreds with Beats is a variation on the original Pilates exercise Hundreds, with inner thigh toning leg beats thrown into the mix! As the legs cross, the arms move gently towards and away from the body to keep the arm movement consistent with the leg movement.