Exercise with overdressing for heat acclimation: a multilayered approach using biophysical modeling and two randomized crossover trials

Abstract

We developed a novel exercise with overdressing protocol for heat acclimation and validated it using two randomized crossover trials. Five sessions of exercise with overdressing in a gym-like environment significantly lowered resting core temperature and peak core temperature, skin temperature, and heart rate during exercise in the heat. These adaptations were superior compared with five sessions of control exercise. This practical exercise with overdressing protocol induces heat acclimation without requiring hot weather.