Rujukan Kecergasan ruang terbuka

  1. ↑ Limited, Alamy. "Stock Photo - Turnplatz (open-air gymnasium) in the Hasenheide, 1811". Alamy. Dicapai pada 6 October 2018.
  2. ↑ Fit Bodies. Fitness Culture and Gym Sassatelli, Roberta. 2006.
  3. ↑ KRUCOFF, CAROL (1998-06-22). "Going Back to the Basics With Calisthenics". Los Angeles Times (dalam bahasa Inggeris). ISSN 0458-3035. Dicapai pada 2018-10-08. In fact, the popularity of the Royal Canadian Air Force's calisthenics program in the late 1950s helped launch the modern fitness movement.
  4. ↑ "Five basic exercises for fitness in 1961". CBC Archives (dalam bahasa Inggeris). Dicapai pada 2018-10-08. The program became famous worldwide.
  5. ↑ ""Father of Aerobics" Kenneth Cooper, MD, MPH to receive Healthy Cup Award from Harvard School of Public Health". News (dalam bahasa Inggeris). 2008-04-16. Dicapai pada 2018-10-08.
  6. ↑ "Dr. Kenneth Cooper and How He Became Known as the Father of Aerobics". Club Industry. 2008-09-01. Diarkibkan daripada yang asal pada 9 October 2018. Dicapai pada 2018-10-08.
  7. ↑ Stern, Marc (2008). "The Fitness Movement and the Fitness Center Industry, 1960-2000" (PDF). Business and Economic History On-line. m/s. 16. Dicapai pada 2018-10-07. For many, however, the club was more than a second-best alternative to outdoor exercise. 'Part of the appeal and actual value of a health club, it seems, remarked journalists in Today’s Health in 1972, is as much psychological as physical.'
  8. ↑ "The Fitness Revolution. Historical Transformations in a Global Gym and Fitness Culture". ResearchGate (dalam bahasa Inggeris). Dicapai pada 2018-10-07.
  9. ↑ "History of Boot Camps". Boot Camp & Military Fitness Institute (dalam bahasa Inggeris). 2013-03-14. Dicapai pada 2018-10-07.
  10. ↑ "'We still come if the rain's sideways' – how Britain fell in love with outdoor fitness". The Guardian. 30 August 2016. Dicapai pada 4 October 2018.
  11. ↑ "How new outdoor bootcamps are kicking Londoners into shape". Evening Standard. 21 August 2017. Dicapai pada 2 October 2018.
  12. ↑ "YMCA Level 3 Award in Instructing Outdoor Fitness". www.ymcaawards.co.uk. Dicapai pada 5 October 2018.
  13. ↑ "Outdoor fitness classes: a personal trainer's guide". 29 June 2016. Dicapai pada 5 October 2018.
  14. ↑ "BMF first to receive ukactive Outdoor Code of Practice certification". Health Club Management. 2015-01-20. Dicapai pada 2018-10-07.
  15. ↑ "BSc Sport and Exercise Science (Outdoor Fitness)". University of Wales Trinity Saint David. Dicapai pada 5 October 2018.
  16. ↑ "The rise of the adult playground". BBC News. 7 May 2012. Dicapai pada 6 October 2018.
  17. ↑ "Rise in outdoor gyms signals a muscling-up of the outdoor fitness industry". The Telegraph. 15 January 2017. ISSN 0307-1235. Dicapai pada 4 October 2018.
  18. ↑ "What is street workout? - Street Workouts". Street Workouts (dalam bahasa Inggeris). 2015-12-11. Dicapai pada 2018-10-07.

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