This number is constantly changing as the definition for what is a ‘fitness professional’ continues to evolve. In the bygone years this was pretty easy, count the ‘aerobic instructors’ and add in a few people calling themselves personal trainers. Now we have so many more defined fitness professionals (e.g. yoga, pilates, aqua, sports performance…). The federal government keeps statistics on certain occupations, so that may be a good place to find out this information.