Try this exercise to challenge your abdominals and other lumbar
stabilizers under the load of the hip flexors.
A way to ensure you maintain a nice neutral lumbar position during this exercise is by putting your hand under your lower back. While in the starting position you should have about 2 cm under your lower back. Slide one or both hands in this space. As you raise the ball your lower back should not move significantly. If you find that your lower back arches away from your hand or if it pushes down on your hands you are not maintaining your neutral lumbar position. Go back and practice your abdominal hollowing exercise and some leg raises on the floor without the ball.
Repeat this ball exercise 6 times.
Repeat this ball exercise 10 times.
Repeat this ball exercise 15 times.
Return to the top of Hip Crunches with the Exercise Ball