Racinais, S2; Alonso, J M3; Coutts, A J4; Flouris, A D5; Girard, O6; González-Alonso, J7; Hausswirth, C8; Jay, O9; Lee, J K W10; Mitchell, N11; Nassis, G P12; Nybo, Lars17; Pluim, B M13; Roelands, B14; Sawka, M N15; Wingo, J E16; Périard, J D2
1 Integrated Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, Københavns Universitet2 Athlete Health and Performance Research Centre, Aspetar, Qatar Orthopaedic and Sports Medicine Hospital, Doha3 Medical and Anti-doping Commission, International Association of Athletics Federations (IAAF), Montecarlo4 Sport and Exercise Discipline Group, University of Technology Sydney (UTS), Lindﬁeld, New South Wales5 FAME Laboratory, Department of Physical Education and Sport Science, University of Thessaly, Trikala6 ISSUL, Institute of Sport Sciences, Department of Physiology, Faculty of Biology and Medicine, University of Lausanne, Lausanne7 Centre for Sports Medicine and Human Performance, Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge8 French National Institute of Sport (INSEP), Research Department, Laboratory of Sport, Expertise and Performance, Paris9 Discipline of Exercise and Sport Science, Faculty of Health Sciences, University of Sydney, Lidcombe, New South Wales10 Defence Medical and Environmental Research Institute, DSO National Laboratories11 British Cycling and “Sky Pro Cycling”, National Cycling Centre, Manchester12 National Sports Medicine Programme, Excellence in Football Project, ASPETAR – Qatar Orthopaedic and Sports Medicine Programme, Doha13 Medical Department, Royal Netherlands Lawn Tennis Association (KNLTB), Amersfoort14 Department of Human Physiology & Sports Medicine, Vrije Universiteit Brussel, Brussels15 School of Applied Physiology, College of Science, Georgia Institute of Technology, Atlanta, Georgia16 Department of Kinesiology, University of Alabama, Tuscaloosa, Alabama17 Integrated Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, Københavns Universitet
Exercising in the heat induces thermoregulatory and other physiological strain that can lead to impairments in endurance exercise capacity. The purpose of this consensus statement is to provide up-to-date recommendations to optimize performance during sporting activities undertaken in hot ambient conditions. The most important intervention one can adopt to reduce physiological strain and optimize performance is to heat acclimatize. Heat acclimatization should comprise repeated exercise-heat exposures over 1-2 weeks. In addition, athletes should initiate competition and training in a euhydrated state and minimize dehydration during exercise. Following the development of commercial cooling systems (e.g., cooling vest), athletes can implement cooling strategies to facilitate heat loss or increase heat storage capacity before training or competing in the heat. Moreover, event organizers should plan for large shaded areas, along with cooling and rehydration facilities, and schedule events in accordance with minimizing the health risks of athletes, especially in mass participation events and during the first hot days of the year. Following the recent examples of the 2008 Olympics and the 2014 FIFA World Cup, sport governing bodies should consider allowing additional (or longer) recovery periods between and during events for hydration and body cooling opportunities when competitions are held in the heat.
Scandinavian Journal of Medicine and Science in Sports, 2015, Vol 25, Issue Suppl. 1, p. 6-19