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The Thermal Outdoor Environment in Track and Field – Best Practices Recommendations for Minimizing Risks

by Juan Gonzalez, PhD, CSCS,*D, D’Angela Lucero, Paola Barrera, Baylee Endsley, Jose Ramos Jr, and Jung Il-Oh
NSCA Coach July 2021
Vol 8, Issue 1

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The purpose of this article is to help disseminate information on the thermal environment during track meets, risk management, and thermal reducing approaches coaches, athletes, and sports medicine personnel can employ for improved athletic performance in a hot environment.

Introduction

Track and field in the United States is a spring sport, which usually means athletes experience the associated late-spring heat temperatures. The 2019 National Collegiate Athletic Association (NCAA) Outdoor Track and Field Championship was held at Mike A. Myers Stadium in Austin, TX, from June 5 – June 8, 2019 (Figures 1 – 3). This track meet ran from 8 am – 10 pm for each of the four days of competition. Track and field officials, volunteers, parents, and athletes were exposed to high thermal conditions during the days of competition, especially during the middle part of the day. Austin averages 111 days a year when the temperature ranges between 95 – 104 degrees Fahrenheit, with 16 of those days above 100 degrees Fahrenheit (24,25). The humidity in Austin during the month of June peaks at 80 percent in the morning and drops to 50 percent by mid-afternoon (24,25). When temperatures get close to and exceed 80 degrees Fahrenheit, especially if the relative humidity is greater than or equal to 50 percent humidity, it can hinder the aerobic and sprint performance of these athletes (1,3,4,5,7,14). There is very little research on the environment in which track meets occur during the spring and summer months. In the summer, the artificial track surface can reach temperatures as high as 147 degrees Fahrenheit. The temperature of the track surface may not seem like a significant problem for a sprinter running the 100-m race, but it becomes significant for those running for longer periods, such as the 5,000- m or 10,000-m races.

The International Association of Athletics Federations (IAAF) World Championships in Doha, Qatar, hosted a marathon that had to start at midnight because the daily temperatures were around 100 degrees Fahrenheit (9,17). The Women’s World Cup in 2019 saw temperatures over 100 degrees Fahrenheit in France (17). The 2016 Olympic Marathon Trials saw runners struggling with the heat (17). The 2020 Olympics in Tokyo was predicted to be one of the hottest on record (6,17,21). The purpose of this article is to help disseminate information on the thermal environment during track meets, risk management, and thermal reducing approaches coaches, athletes, and sports medicine personnel can employ for improved athletic performance in a hot environment. The term “thermal” will be defined as caused by outside environmental temperature.

This article originally appeared in NSCA Coach, a quarterly publication for NSCA Members that provides valuable takeaways for every level of strength and conditioning coach. You can find scientifically based articles specific to a wide variety of your athletes’ needs with Nutrition, Programming, and Youth columns. Read more articles from NSCA Coach »

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References

1. American College of Sports Medicine. Position stand on prevention of thermal injuries during distance running. Sports Medicine Bulletin 19:8, 1984.

2. Armstrong, LE, Casa, DJ, Millard-Stafford, M, Moran, DS, Pyne, SW, and Roberts, WO. American College of Sports Medicine position stand on exertional heat illness during training and competition. Medicine and Science in Sports and Exercise 39(3): 556–572, 2007.

3. Armstrong, LE, Epstein, Y, Greenleaf, JE, Haymes, EM, Hubbard, RW, Roberts, WO, and Thompson, PD. American College of Sports Medicine position stand on heat and cold illnesses during distance running. Medicine and Science in Sports and Exercise 28(12): i–x, 1996.

4. Armstrong, LE. Assessing hydration status: The elusive gold standard. Journal of American College Nutrition 24: 575S–584S, 2007.

5. Armstrong, N. Development of the Youth Athlete. (1st ed.) New York, NY: Routledge; 61-62, 2018.

6. Asayama, M. Guideline for the prevention of heat disorder in Japan. Global Environment Research 13: 19-25, 2009.

7. Bongers, CC, Hopman, MT, and Eijsvogels, TM. Cooling interventions for athletes: An overview of effectiveness, physiological mechanisms, and practical considerations. Temperature (Austin, Texas) 4(1): 60-78, 2017.

8. Brake, DJ. Calculation of the natural (unventilated) wet bulb temperature, psychrometric dry bulb temperature and wet bulb globe temperature from standard psychrometric measurements. Journal of the Mine Ventilation Society of South Africa 54: 108-112, 2001.

9. Casa, DJ, Cheuvront, SN, Galloway, SD, and Shirreffs, SM. Fluid needs for training, competition, and recovery in track and field athletes. International Journal of Sport Nutrition and Exercise Metabolism 29(2): 175-180, 2019.

10. Choi, J, Ghaffari, R, Baker, LB, and Rogers, JA. Skininterfaced systems for sweat collection and analytics. Science Advances 4(2): 2018.

11. Coris, EE, Ramirez, AM, and Van Durme, DJ. Heat illness in athletes: The dangerous combination of heat, humidity and exercise. Sports Medicine (Auckland, New Zealand) 34(1): 9-16, 2004.

12. Costello, JT, Stewart, IB, Selfe, J, Kärki, A, and Donnelly, AE. Use of thermal imaging in sports medicine research: A short report. International Sport Medicine Journal 14(2): 94-98, 2013.

13. Ekici, C. Calibration of heat stress monitor and its measurement uncertainty. International Journal of Thermophysics 38(85): 2017.

14. Gibson, OR, James, CA, Mee, JA, Willmott, A, Turner, G, Hayes, M, and Maxwell, NS. Heat alleviation strategies for athletic performance: A review and practitioner guidelines. Temperature (Austin, Texas) 7(1): 3-36, 2019.

15. Howe, AS, and Boden, BP. Heat-related illness in athletes. The American Journal of Sports Medicine 35(8): 1384–1395, 2007.

16. Hunter, I, Hopkins, JT, and Casa, DJ. Warming up with an ice vest: Core body temperature before and after cross-country racing. Journal of Athletic Training 41(4): 371–374, 2006.

17. Kakamu, T, Wada, K, Smith, DR, Endo, S, and Fukushima, T. Preventing heat illness in the anticipated hot climate of the Tokyo 2020 Summer Olympic Games. Environmental Health and Preventive Medicine 22(1): 68, 2017.

18. Korey Stringer Institute. Wet bulb globe temperature monitoring. University of Connecticut. 2020. Retrieved October 2020 from https://ksi.uconn.edu/prevention/wet-bulb-globetemperature- monitoring/#.

19. McCann, DJ, and Adams, WC. Wet bulb globe temperature index and performance in competitive distance runners. Medicine and Science in Sports and Exercise 29(7): 955-961, 1997.

20. Miners, AL. The diagnosis and emergency care of heat related illness and sunburn in athletes: A retrospective case series. The Journal of the Canadian Chiropractic Association 54(2): 107–117, 2010.

21. Ministry of the Environment. Heat illness Prevention information. 2006-2020. Retrieved October 2020 from http:// www.wbgt.env.go.jp/heatillness_gline.php.

22. Minnesota Department of Labor and Industry: Occupational Safety and Health Division. MNOSHA heat stress guide. Occupational Safety and Health Administration 14-25, 2009.

23. Morris, NB, and Jay, O. To drink or to pour: How should athletes use water to cool themselves? Temperature (Austin, Texas) 3(2): 191-194, 2016.

24. National Weather Service. Weather.gov Heat index. 2020. Retrieved October 2020 from https://www.weather.gov/ safety/heat-index.

25. National Weather Service. Weather.gov Wet Bulb Globe Temperature. 2020. Retrieved October 2020 from https://www. weather.gov/arx/wbgt.

26. Nielsen, B. Olympics in Atlanta: A fight against physics. Medicine and Science in Sports and Exercise 28(6): 665-668, 1996.

27. Olschewski, H, Brück, K. Thermoregulatory, cardiovascular, and muscular factors related to exercise after precooling. Journal of Applied Physiology 64: 803-811, 1988.

28. Racinais, S, Alonso, J, Coutts, AJ, Flouris, AD, Girard, O, González-Alonso, J, et al. Consensus recommendations on training and competing in the heat. Sports Medicine 45: 925-938, 2015.

29. Seshadri, DR, Li, RT, Voos, JE, Rowbottom, JR, Alfes, CM, Zorman, CA, and Drummond, CK. Wearable sensors for monitoring the internal and external workload of the athlete. NPJ Digital Medicine 2: 71, 2019.

30. United States Environmental Protection Agency. UV index scale. 2019. Retrieved October 2020 from https://www.epa.gov/ sunsafety/uv-index-scale-1.

31. Wasserman, DD, Creech, JA, and Healy, M. Cooling Techniques for Hyperthermia. Treasure Island, FL: StatPearls Publishing; 2020.

32. Whiteman, DC, Neale, RE, Aitken, J, Gordon, L, Green, AC, Janda, M, et al. When to apply sunscreen: A consensus statement for Australia and New Zealand. Australian and New Zealand Journal of Public Health 43(2): 171-175, 2019.

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Juan Gonzalez, PhD, CSCS

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Juan Gonzalez is an Associate Professor within the Department of Health and Human Performance and the College of Health Professions at the University ...

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Baylee Endsley

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Jose A. Ramos, Jr.

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Jose Ramos, Jr. is a Certified Athletic Trainer (ATC) LicensedAthletic Trainer (LAT), and Licensed Massage Therapist (LMT) inTexas. He is currently an ...

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