Looking to actually accomplish something with your ab workout instead of just doing crunches day after day?

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Exercise Ball Oblique Crunches with Medicine Ball

Although this movement targets the oblique (side) abdominal muscles, it exercises your entire core musculature at the same time. By balancing yourself on the exercise ball and also adding outside resistance (the medicine ball), you force all of your core muscles to activate just to keep you stable, and that is before you even start moving back and forth to exercise the oblique muscles!

Click here to see more exercises that use a medicine ball or go here to see more exercises that use an exercise ball.