2. BALL PLANK TUCKS
Begin by placing your shins on an exercise ball, fully extended body and your hands firmly on the ground in a plank position.
1) Use your lower abdominal muscles to bring your knees to your chest and roll your feet on top of the exercise ball
2) Hold for 1 second before returning to the starting position.
Start by doing 8-10 reps and then increase as your become stronger.