Posted by: walkahead August 22, 2010
p90x
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One of my friend did that, Abripper or something, He was thalan for 2 days grabbing his Abs while walking, sitting or getting up, 

Bottom line, it works, but don't get excited and do all the sets at the same day or week or month, 

Take some time.. that Abs if it hurt then it works, but give it some time.. 
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