two-legged-bridge-with-feet-apart-on-the-exercise-ball
Bridging on the exercise ball increases the difficulty of the exercises. It challenges the low back muscles and further develops the core muscles. The exercises should be performed slow and steady. Try to keep the waist level while moving up and down.
Start with two feet apart in the bridge position. The ball should be comfortably rested between the shoulder blades and neck. Slowly raise and lower your waist in a slow and controlled fashion.