Knee Sway.

Stretches your spine, lower back, hips, and chest
The ball will help create more of a twist in your spine.

A. Lie on your back with your knees in toward your chest. Grasp the ball and extend your arms from your chest.
B. Exhale as you lower your knees to the floor to your left and the ball to the floor to the right. Hold for 30 seconds, breathing normally. Inhale as you rise and exhale as you repeat on the opposite side.