What Is CrossFit?

About the Expert

Jonathan Ross
Jonathan Ross

Jonathan Ross is a Discovery Fit & Health blogger and author of the book Abs Revealed. Ross is also a certified personal trainer by the American Council in Exercise and certified CrossFit level 1.

Jonathan invites you to join his cruise through Alaska for "A Better You" coming this summer. For more information, see here.

Related Articles


  • Ross, Jonathan. "CrossFit Interview." Telephone interview. 26 Sept. 2013.
  • Smith, MM, AJ Sommer, BE Starkoff, and ST Devor. "Crossfit-based High Intensity Power Training Improves Maximal Aerobic Fitness and Body Composition." National Center for Biotechnology Information. U.S. National Library of Medicine, 22 Feb. 2013. Web. 02 Oct. 2013. <http://www.ncbi.nlm.nih.gov/pubmed/23439334>.
  • Douglas, Scott. "How Good of a Workout Is CrossFit?" Runner's World & Running Times. Runner's World, 17 May 2013. Web. 02 Oct. 2013. <http://www.runnersworld.com/workouts/how-good-of-a-workout-is-crossfit?page=single>.
  • Steve. "A Beginner’s Guide to CrossFit." NerdFitness.com. Nerd Fitness, 01 Mar. 2012. Web. 02 Oct. 2013. <http://www.nerdfitness.com/blog/2012/03/01/a-beginners-guide-to-crossfit/>.