Do any of the ab machines on the market work? ADVERTISEMENT 895 viewsOctober 6, 2011 0 Laura October 6, 2011 0 Comments 8 Answers ActiveVotedNewestOldest 0 Bryant0 Posted 0 Comments Yes, but try to steer away from them unless you’re working on longevity or rehabilitation. You are viewing 1 out of 8 answers, click here to view all answers. Register or Login