What need to own a gym?
I think a career in health / fitness. If I had to choose, I would owning / managing a gym and not specifically go to "personal trainer" or "nutritionist". I always go to the gym and never satisfied. I would perfect the gym (at my level!) And how would you do it. Do you have to go through business courses in school or what. I noticed some sites have gym so you can "open a franchise," but ehhhhh not want to take any other gym.
As with any business you will need significant capital in the company, a business plan to present to the bank if you decide on the request a loan to start, and hell lot of confidence (no doubt the murderer) to protect members of fools them and continue injurying to justice. The exercise equipment is expensive and getting your ROI (return on investment) may take longer than the company service based on the average. In addition, people are very fickle, especially about fitness. You'll have to make your business appear better than the chains that are appeal to members of his reputation, the service 24 hours, and several places. If your passion and hard work can not swim.