- Lie on ball with your lower abdomen on top of the ball and your hips in contact with the ball.
- Either brace your feet against the base of the wall or have a partner hold them down.
- Lie with your body bent forward at the waist.
- Keeping your back straight, lift your upper back up until your body is straight.
- When your body is straight, most of your weight should be on your hips on the exercise ball.