By eHow Sports & Fitness Editor
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Many of us would love to turn our abdomens into a firm "six pack." Attaining that flat stomach isn't that difficult if you learn some basic abdominal strengthening exercises and do them regularly. For best results, do a variety of abdominal strengthening exercises, including some reverse ab crunches for your lower abs. As with any exercise, the reverse hanging ab crunch must be done properly to be effective.
eHow Sports & Fitness Editor