* 125 crunches on a stability ball
* 75 crunches and 4 x 30 seconds isolation exercises (such as the plank, shown below)
 * 110 crunches (alternating middle and sides)
* 3 x 12 obliques per side with a ten pound weight,
 * 50 crunches on this ab machine, and 10 not-sure-how-to-describe-these-but-you-brace-yourself-by-your-arms-and-pull-your-legs-up-bending-the-knees.
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