Benefits of heat re-acclimation in the lead-up to the Tokyo Olympics

Figure 1Potential heat acclimation periodisation.Athletes can undergo a heat acclimation regimen several weeks in advance of competition, maintain some of the adaptations through exercise and periodic post-exercise hot water immersion until travelling, and then re-acclimate with 2-3 sessions after arriving at the competition venue.The bottom panel provides an example of the time frame and magnitude of adaptation in heart rate during exercise in the heat when conducting an initial 10-day heat acclimation camp and a subsequent 5 or 7 days of re-acclimation 12 and 26 days later, respectively.Redrawn with permission from Weller et al.