Is it better to do a circuit or a set routine for your abs? ADVERTISEMENT 2.42K viewsNovember 11, 2011 0 Gus0 November 11, 2011 0 Comments 14 Answers ActiveVotedNewestOldest 0 Sue0 Posted 0 Comments I suggest mixing up abdominal work As with all muscles, repetition causes adaptation. You are viewing 1 out of 14 answers, click here to view all answers. Register or Login