Eight serious ab moves from top Olympic trainers that will score you a rock-solid middle

DO IT Train your core with these eight moves three nonconsecutive days a week to flatten your belly and get super sexy abs! Either do them all together as a stand-alone workout or add three or four of them to the end of your usual strength-training routine. For each move, start with one set. Once you can complete all the reps with perfect form, add another.