http://www.sixpackabsuncovered.com/get-six-pack-abs-exercises/ Tue, 13 Apr 2010 02:11:59 +0000 hourly 1 http://www.sixpackabsuncovered.com/get-six-pack-abs-exercises/comment-page-1/#comment-451 Randy Spence Sat, 13 Mar 2010 01:57:54 +0000 http://www.sixpackabsuncovered.com/get-six-pack-abs-exercises/#comment-451 The Air Bike exercise is the better one to do if you have a bad back, or if you had an injury of some sort because it doesn't put a lot of strain on it. The Air Bike exercise is the better one to do if you have a bad back, or if you had an injury of some sort because it doesn’t put a lot of strain on it.

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