Effect of high-intensity interval training and detraining on extra VO2 and on the VO2 slow component.

摘要: To examine the effect of 6-week high-intensity interval training (HIT) and detraining on $${\dot{{V}}\hbox{O}_{2}}$$ /Work Rate (WR) relationship slow component $${\dot{{V}}\hbox{O}_{2},}$$ nine young male adults performed cycle ergometer, before, after detraining, an incremental exercise (IE), a 6-min constant work rate (CWRE) above first ventilatory threshold (VT1). For each IE, slope intercept /WR were calculated with linear regression using data before VT1. The difference between $${\dot{{V}}\hbox{O}_{{\rm 2max}}}$$ measured expected pre-VT1 was (extra ). at 6th min 3rd during CWRE $${(\Delta\dot{{V}}\hbox{O}_{2(6^{\prime}-3^{\prime})})}$$ also determined. HIT induced significant improvement most aerobic fitness parameters while these returned to their pre-training level detraining. Extra IE reduced (130 ± 100 vs. −29 ± 175 ml min−1, P = 0.04) not altered compared post-training. $${\Delta\dot{{V}}\hbox{O}_{2(6^{\prime}-3^{\prime})}}$$ unchanged by We found correlation (r 2  =  0.575, P  =  0.02) extra training. These results show that alteration can occur without any change in component, suggesting possible dissociation two phenomena. Moreover, fact did could indicate this may remain loss other adaptations.