Lie prone on a stability ball with hips and lower abdomen centered on top. Anchor feet against a wall or floor hip-width apart, hands behind head or crossed over chest.

1. Lower torso slowly over the ball to feel a back stretch.
2. Exhale and lift upper body using back muscles until body forms a straight line from head to heels.
3. At peak extension, rotate torso slowly to one side from thoracic spine.
4. Return torso to center while maintaining extension.
5. Inhale and lower upper body controlled back over the ball.
6. Alternate twist direction on next rep.