Sports Dietitians Australia position statement: Nutrition for exercise in hot environments

Exercise in hot and/or humid environments, or with significant clothing and/or equipment that prevents loss of body heat, can lead to exertional heat stress. Numerous sporting competitions are regularly held in outdoor environments in such conditions including high-intensity endurance events (e.g., 10-km road races and half-marathons, cycling time trials), ultra-endurance events (e.g., Badwater Ultramarathon, Ironman World Championships, and Marathon des Sables), and team (e.g., cricket and soccer) and racquet (e.g., tennis) sports played during summer months. Meanwhile, scenarios involving sports in hot and/or humid indoor environments include squash and motor racing, where in the latter case, the driver/rider can be exposed to ambient temperatures >45 °C while wearing protective clothing and equipment. Major sporting events in hot and/or humid locations, such as the 2019 International Association of Athletics Federations World Championships in Doha, Qatar, and the 2020 Summer Olympic Games in Tokyo, Japan, merit special consideration because the conditions pose a significant challenge for a large number of competitors (Gerrett et al., 2019) and require specific preparation. What should be evident from these scenarios is that the thermal challenges faced by athletes are significant in both magnitude and variety, with individual factors such as the environmental conditions, metabolic heat production, performance characteristics, and logistics of athlete behavior around the exercise session creating unique concerns, as well as dictating the type of solutions that might be developed. Indeed, prolonged exertional heat stress can perturb the thermoregulatory, cardiovascular, and gastrointestinal systems, posing significant concerns for an athlete`s health and performance. It is the position of Sports Dietitians Australia that exertional heat stress can significantly affect an athlete`s nutritional status, but careful planning and implementation of nutrition strategies can assist him or her to optimize health and performance outcomes in such conditions. The following position statement summarizes these issues and the nutrition and hydration strategies with which they can be addressed.
© Copyright 2020 International Journal of Sport Nutrition and Exercise Metabolism. Human Kinetics. Kaikki oikeudet pidätetään.

Aiheet: ravitsemus neste lisäravinteiden käyttö ympäristö ilmasto lämpötila kilpailu kuormitus kesäolympialaiset 2020 stressi urheilu
Aihealueet: biologiset ja lääketieteelliset tieteet
Tagging: Luftfeuchtigkeit
DOI: 10.1123/ijsnem.2019-0300
Julkaisussa: International Journal of Sport Nutrition and Exercise Metabolism
Julkaistu: 2020
Vuosikerta: 30
Numero: 1
Sivuja: 83-98
Julkaisutyypit: artikkeli
Kieli: englanti (kieli)
Taso: kehittynyt