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Personal Trainer Mike Behnken, MS, NASM-CPT-PES, CSCS

This exercise is a tremendous obliques exercise.

You will hold an inner thigh and leg isometric contraction with the ball between your legs.

Your knees should not be knock kneed.

To perform this properly make sure your hips are flexed as much as possible while keeping your butt on the floor.
Keeping the ball above your hips and at hip level will help you get the most benefits out of this stability ball exercise.

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