Control of the intensity of effort. heart rate or rate of perceived effort

Objective: the goal of the present study was to compare the oxygen uptake between three experimental sessions of the Air Bike PRO (R) class, which the difference between sessions was the method used to control intensity of effort: SL) external load corresponds to ventilatory thresholds and 90% peak VO2; SRPE) rate perceived effort; SHR) heart rate. Methods: Ten physically active young men aged between 21 and 30 years old (mean +/- standard deviation: 25.4 +/- 4.81) participated in 3 study sessions, where they performed 3 Air Bike PRO (R) classes, in a randomized way. VO2 was measured in all sessions during the Air Bike PRO (R) class. Results: The values of absolute VO2 (l/min) were significantly higher in the SL compared to the SHR in the 20 to 30 minute block and in music tracks 5 and 8 (p < 0.05). Relative VO2 (ml / Kg / min) was significantly higher in the SL compared to the SHR in the 10 to 20 minute and 20 to 30 minute block and in music tracks 5, 6, 7, 8 and 9 (p < 0.05). In the SRPE, significantly higher values were also observed compared to the SHR, in the 20 to 30 minute block and in music tracks 5 and 8 (p < 0.05). Conclusion: According to the data of the present study, it is possible to conclude that the SRPE presents more similarities with the SL.