Of the members of IDEA and ACE certified group exercise instructors, what percentage have been teaching for more than 15 years? ADVERTISEMENT 407 viewsSeptember 14, 2011 0 Susan September 14, 2011 0 Comments I am looking for statistical data on IDEA members and ACE certified instructors to use for an article I’m writing. 4 Answers ActiveVotedNewestOldest 0 Hardy15 Posted 0 Comments Certified by the YMCA in the late 1980’s and ACE in 1992, I have been in the fitness industry for more than 25 years. You are viewing 1 out of 4 answers, click here to view all answers. Register or Login