The male fitness modeling industry is vastly different from men's fashion modeling and offers a more opportunities to "break in". While male fashion modeling is centered around the power of fashion designers, fitness modeling is driven by supplement manufacturers and fitness magazines, with some big name clients such as Nike.
If you think about it, male fashion models show off clothing, and male fitness models? ...They show off muscles.
So, if you are having trouble getting your first big (or medium sized) modeling break in fashion, consider tryin a fitness modeling job as a way to network your way into high fashion.
Male fitness modeling pays much less than high fashion, but is at least some step toward "being discovered." Because any exposure is better than being an unknown in a small town... and there are not many high powered modeling agents hanging out at your gym.