1. Lie back on the ball with your arms crossed over the front of your body.
2. Move upwards while focusing on your abdominals doing the movement.
3. Return to the starting under control and repeat for the prescribed number of repetitions.
2. Exercise Ball Crunch - advanced
* place a med ball, dumbbell, or weighted plate in your hands for added resistance. Focus on keeping your arms back.
3. Exercise Ball Bicycle Crunch
1. Begin with feet on the floor while your upper body is flat on the exercise ball. Place your hands behind your head. Lean back enough so that you feel that your abdominals are already flexed.
2.Raise your body off of the ball and bring your elbow to your opposite knee. Concentrate on your abdominals doing the majority of the work. It is vital to do the movement slowly so you do not lose your form.
3. Return to the starting position.
4. Repeat the movement with the opposite elbow and knee. One crunch with each elbow equals one repetition.
4. Lateral (Oblique) Crunch