ncsf.org | National Council on Strength and Fitness |
joint-effort.co.uk | Joint Effort Fitness Ltd |
issaonline.com | International Sports Sciences Association |
fitour.com | FiTOUR |
body-basics.com | National Association for Fitness Certification |
frausa.com | Fitness Resource Associates |
afpafitness.com | American Fitness Professionals and Associates [AFPA] |
acefitness.org | American Council on Exercise (ACE) |
acsm.org | American College of Sports Medicine |
ifpa-fitness.com | International Fitness Professionals Association |
fitabc.com | www.fitabc.com/ |