CA
44 Points
Joined October 2017
If the person is a fitness professional(like yoga, aerobics, etc..,) and trains his clients - then it is profession
if the person provides equipment, and members use them, then it is business.
A fitness professional is a professional in the field of fitness and exercise, most often instruction (fitness instructor), including aerobics and yoga instructors and authors of fitness instruction books or manuals. courtesy - google