Of the members of IDEA and ACE certified group exercise instructors, what percentage have been teaching for more than 15 years? ADVERTISEMENT 353 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 Kelli0 Posted 0 Comments Hi Susan, Statistics from the 2011 IDEA World Fitness Convention show that about 47% of the attendees had at least 15 years experience in the industry. Hopefully that helps! You are viewing 1 out of 4 answers, click here to view all answers. Register or Login