Exercises with your chest as a contributor:
This promotes flexibility in the lower back and develops proprioception as you are taking your hips over your head while balancing on the ball and using your abs to tuck your knees to your chest.
A hard variation of plank exercise, this will develop upper body and core strength.
This is even more challenging than a plank on your elbows because of the instability that the ball produces.
Add exercises to a workout by clicking clicking on a body part or the 'Cardio' / 'Activity' buttons.