Instructions

Lie on your back and place a swiss ball between your lower legs. Squeeze your calves and heels firmly into the ball to secure a tight grip. Place your arms on the floor by your sides for stability.

Bracing your core, raise your legs rolling your pelvis upward so that your glutes and lower back lift off the floor. Lower back with control to the starting position then lower your legs towards the floor, only going as low as you can maintain a neutral spine. Raise your legs back to the starting position to repeat.