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Originally Posted by Chapel  A 6-pack really appears around some lowish body fat percent. If you are skinny, it might be a better idea health wise and athletic wise just to build up muscle all around instead of worrying about a single group of muscles. |
More to this point...Men typically show their abs around 10% body fat, while women generally show around 18%.
Cardio is much more important than ab exercises with diet being more important than either.