Fitness equipment has been sold for more than ten years. I advise you not to open it. Of course, there are exceptions, unless this place is at least a provincial capital city or a city with a fairly high population density, with few competitors and great demand, and then you have good contacts and good factory resources. Most retail fitness equipment stores don't make money, so they should make sporting goods. Many fitness equipment stores only serve as windows for product display and make money by engineering projects.