Effects of hydration status on selected physiological and performance variables during repeated short bouts of maximal-intensity cycling exercise

Jacobs (1980: International Journal of Sports Medicine, 1, 21±24) reported that individuals who were dehydrated by as much as 5% of total body mass demonstrated no change in performance during a 30 s Wingate anaerobic test. The aim of this study was to determine if hydration status had an effect on the physiological response (heart rate; minute ventilation, VÇ E; oxygen uptake, VÇ O2; respiratory exchange ratio, RER), rating of perceived exertion (RPE, Borg 6±20 scale; Borg, 1986: The Perception of Exertion in Physical Work. London: Macmillan) and performance (mean power output, total work done), during repeated short bouts of maximal-intensity cycling exercise.