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Published on Sep 26, 2008
Straight-leg ab crunch abdominal exercises workout upper abdominal muscles for kickboxing. Learn to do straight-leg ab crunch abdominal exercises for kickboxing fitness in this free video.
Expert: Mike Mallon Bio: Mike Mallon is a fourth degree black belt and an instructor at the Clearwater Kung Fu Center. He is a national champion as well as an AAU (Amateur Athletic Union) champion. Filmmaker: Christopher Rokosz