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CrossFit

CrossFit, LLC
IndustryFitness, sports
Founded2000 (2000)
FounderGreg Glassman
Lauren Jenai
Headquarters
Santa Cruz, California
,
U.S.
Area served
Worldwide
Websitecrossfit.com

CrossFit is a branded fitness regimen that involves constantly varied functional movements performed at high intensity.[1] The method was developed by Greg Glassman,[2] who founded CrossFit with Lauren Jenai in 2000,[3][4][5] with CrossFit its registered trademark.[6] The company forms what has been described as the biggest fitness chain in the world,[7][8] with around 12,000 affiliated gyms in over 150 countries as of 2022, under half of which are located in the United States.[9][10]

CrossFit is promoted as both a physical exercise philosophy and a competitive fitness sport, incorporating elements from high-intensity interval training (HIIT), Olympic weightlifting, plyometrics, powerlifting, gymnastics, kettlebell lifting, calisthenics, strongman, and other exercises.[11] CrossFit presents its training program as one that can best prepare its trainees for any physical contingency, preparing them for what may be "unknown" and "unknowable".[12] It is practiced by members in CrossFit-affiliated gyms,[13] and by individuals who complete daily workouts (otherwise known as "WODs" or "Workouts of the Day").[14][15]

Studies indicate that CrossFit can have positive effects on a number of physical fitness parameters and body composition, as well as on the mental state and social life of its participants.[16][17] CrossFit, however, has been criticized for causing more injuries than other sporting activities such as weightlifting; although a review article in the Journal of Sports Rehabilitation found that "the risk of injury from participation in CrossFit is comparable to or lower than some common forms of exercise or strength training".[18] Its health benefits and injury rates are determined to be similar to other exercise programs.[19] There are also concerns that its methodology may cause exertional rhabdomyolysis, a possible life-threatening condition also found in other sports,[20][21][22] resulting from a breakdown of muscle from extreme exertion.[23][24]

  1. ^ Cite error: The named reference understanding crossfit was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference GlassmanWarpath was invoked but never defined (see the help page).
  3. ^ Soifer, Jason (November 2011). "Co-founder of CrossFit workout program opens gym in Prescott". The Daily Courier. Retrieved April 28, 2014.
  4. ^ Glassman, Greg. "Nutrition Lecture Part 2: Optimizing Performance". Crossfit, Inc. Retrieved August 12, 2012.
  5. ^ "CrossFit, Inc: Private Company Information - Businessweek". Businessweek.com. Archived from the original on July 13, 2012. Retrieved February 1, 2015.
  6. ^ "CROSSFIT Trademark of CrossFit, Inc. - Registration Number 3007458 - Serial Number 78422177 :: Justia Trademarks". trademarks.justia.com. Retrieved 2016-01-25.
  7. ^ Henderson, Scott (October 23, 2018). "CrossFit's Explosive Affiliate Growth by the Numbers". Morning Chalk Up.
  8. ^ "How a health nut created the world's biggest fitness trend". CNBC. 5 April 2016.
  9. ^ "Official CrossFit Affiliate Gym Locator". Retrieved February 1, 2015.
  10. ^ "Guaranteed Rate Named the Official Mortgage Company of the NOBULL CrossFit Games". PRNewwire. May 13, 2022.
  11. ^ David Corianna (19 September 2019). "CrossFit: Workout, for women, exercises, & training for beginners". FactDr. Retrieved 30 November 2019.
  12. ^ Glassman, Greg (April 2007). "Understanding CrossFit" (PDF). CrossFit Journal (56).
  13. ^ Friedman, Jon. "Success and the Bull's Eye". The CrossFit Journal. Retrieved March 16, 2014.
  14. ^ "CrossFit". CrossFit, Inc.
  15. ^ "CrossFit Affiliate Map". CrossFit, Inc.
  16. ^ Sebastian Wagener; Matthias Wilhelm Hoppe; Thilo Hotfiel; Martin Engelhardt; Sasha Javanmardi; Christian Baumgart; Jürgen Freiwald (September 2020). "CrossFit – Development, Benefits and Risks". Sportorthopädie-Sporttraumatologie. 36 (3): 241–249. doi:10.1016/j.orthtr.2020.07.001. PMC 7473349.
  17. ^ Gianzina, E.A.; Kassotaki, O.A. (2019). "The benefits and risks of the high-intensity CrossFit training". Sport Sci Health. 15: 21–33. doi:10.1007/s11332-018-0521-7. S2CID 57428207.
  18. ^ Cite error: The named reference injury review was invoked but never defined (see the help page).
  19. ^ Jena Meyer; Janet Morrison; Julie Zuniga (December 2017). "The Benefits and Risks of CrossFit: A Systematic Review". Workplace Health Saf. 65 (12): 612–618. doi:10.1177/2165079916685568. PMID 28363035.
  20. ^ Guilherme Henrique Mattos Dantas; Rodolfo de Alkmim Moreira Nunes; Rodrigo Gomes de Souza Vale (May 27, 2021). "Case reports of athletes affected by rhabdomyolysis: A systematic review". International Journal of Sports Science & Coaching. 17 (1): 189–196. doi:10.1177/17479541211018597. S2CID 236347445.
  21. ^ Cite error: The named reference backer was invoked but never defined (see the help page).
  22. ^ Cite error: The named reference bjsm was invoked but never defined (see the help page).
  23. ^ Benjamin S Hopkins; Daniel Li; Mark Svet; Kartik Kesavabhotla; Nader S Dahdaleh (July 2019). "CrossFit and rhabdomyolysis: A case series of 11 patients presenting at a single academic institution". J Sci Med Sport. 22 (7): 758–762. doi:10.1016/j.jsams.2019.01.019. PMID 30846355.
  24. ^ Cite error: The named reference ABCNews was invoked but never defined (see the help page).
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