Before you plan to sell your ebook, I suggest you compare the content of your ebook with the content of other similar ebooks.
FYI: The best selling fitness ebook on clickbank (since 3 years!) is "
Burn The Fat, Feed The Muscle" by Tom Venuto. This ebook (340 pages) costs $39.95 and comes with 5 bonuses and a 8-week money-back guarantee.
I believe it's hard to compete with that ebook, because it covers all aspects of fitness (goal setting/motivation, cardio, weight exercises, nutrition, etc).
PS. I'm not affiliated with that site.