Physiological and Perceptual Effects of Repeated Exercise Bouts in Heat

An abstract of a study by Pryor et al determining if one bout of strenuous exercise in heat affects thermal and cardiovascular strain during a subsequent exercise bout the same day and examining if multiple exercise bouts in the heat affect thermal and cardiovascular strain during exercise the subsequent day is presented. The second of two exercise bouts on the same day resulted in greater cardiovascular strain, thermal strain, and fatigue prior to exercise. Exercise ceased prematurely during both Bout 2 and Day 2. Medical staff and coaches should avoid multiple practices on the same day within the first week of practice to mitigate increased fatigue and physiological strain during subsequent exercise bouts.