There are a number of different questions here – let’s see if I can help.

While I appreciate your interest in being involved with sports, the possibilities you mention are all over the place.

If you are interested in sports nutrition, you would obtain training in nutrition and emphasize any relation to sports – do your term papers on sports-related themes, or any theme that addresses high-intensity activity and consequent nutritional needs.

I know one student who obtained a business degree, and did everything he could to relate his studies in relation to sports-businesses. He is now the business manager for a professional hockey team in the USA.

As for your prior experiences in sports and training – they are excellent credentials to get into a program. Some institutions allow "credit by portfolio" but I don’t think much of a place that allows that. Instead, go for a part-time degree and, once again, do everything you can to relate it to your sports and fitness interests.

Good luck to you.
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