This is similar to the Pilates Mat Rollup exercise. You begin seated on a fit ball. And using your abdominals, glutes, and legs, you tuck your tailbone under, allowing the ball to begin rolling up your spine as you walk forward. Exhale as you walk forward, pausing before walking back, then Exhaling as you walk back and roll up. Find out more at www.susannaengfitness.com/