1) Start position: Lie with back on floor or bench with hips flexed at 90° and feet in air holding a stability ball. Position arms at sides with palms down on floor.
2) Keeping legs straight lower your legs towards the floor and then bring them up towards your head. You will have to lift your glutes and lower back off the floor to accomplish this.
3) Return to start position.
4) Remember keep legs from swinging to prevent momentum throughout the exercise
