| body-basics.com | National Association for Fitness Certification |
| afpafitness.com | American Fitness Professionals and Associates [AFPA] |
| acefitness.org | American Council on Exercise (ACE) |
| nspainc.com | National Strength Professionals Association |
| nsca-cc.org | NSCA Certification Commission |
| nfpt.com | National Federation of Professional Trainers |
| joint-effort.co.uk | Joint Effort Fitness Ltd |
| acsm.org | American College of Sports Medicine |
| issaonline.com | International Sports Sciences Association |
| ifpa-fitness.com | International Fitness Professionals Association |
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