In each session the VO2max, the oxygen uptake at ST (VO2ST), the HRmax and heart rate at ST (HRST) were measured. The sessions were performed in environments with a thermoneutral temperature for exercise. In the aquatic environment, the water temperature ranged from 31–32ºC (Sheldahl et al., 1984) and the immersion was up to the xiphoid process level (Barbosa et al., 2007).