European Journal of Applied Physiology

, Volume 99, Issue 6, pp 633–640

Effect of high-intensity interval training and detraining on extra \({\dot{{V}}\hbox{O}_{2}}\) and on the \({\dot{{V}}\hbox{O}_{2}}\) slow component

  • A. Marles
  • R. Legrand
  • N. Blondel
  • P. Mucci
  • D. Betbeder
  • F. Prieur
Original Article

DOI: 10.1007/s00421-006-0386-3

Cite this article as:
Marles, A., Legrand, R., Blondel, N. et al. Eur J Appl Physiol (2007) 99: 633. doi:10.1007/s00421-006-0386-3

Abstract

To examine the effect of 6-week of high-intensity interval training (HIT) and of 6-week of detraining on the \({\dot{{V}}\hbox{O}_{2}}\)/Work Rate (WR) relationship and on the slow component of \({\dot{{V}}\hbox{O}_{2},}\) nine young male adults performed on cycle ergometer, before, after training and after detraining, an incremental exercise (IE), and a 6-min constant work rate exercise (CWRE) above the first ventilatory threshold (VT1). For each IE, the slope and the intercept of the \({\dot{{V}}\hbox{O}_{2}}\)/WR relationship were calculated with linear regression using data before VT1. The difference between \({\dot{{V}}\hbox{O}_{{\rm 2max}}}\) measured and \({\dot{{V}}\hbox{O}_{{\rm 2max}}}\) expected using the pre-VT1 slope was calculated (extra \({\dot{{V}}\hbox{O}_{2}}\)). The difference between \({\dot{{V}}\hbox{O}_{2}}\) at 6th min and \({\dot{{V}}\hbox{O}_{2}}\) at 3rd min during CWRE \({(\Delta\dot{{V}}\hbox{O}_{2(6^{\prime}-3^{\prime})})}\) was also determined. HIT induced significant improvement of most of the aerobic fitness parameters while most of these parameters returned to their pre-training level after detraining. Extra \({\dot{{V}}\hbox{O}_{2}}\) during IE was reduced after training (130 ± 100 vs. −29 ± 175 ml min−1, P = 0.04) and was not altered after detraining compared to post-training. \({\Delta\dot{{V}}\hbox{O}_{2(6^{\prime}-3^{\prime})}}\) during CWRE was unchanged by training and by detraining. We found a significant correlation (r2  =  0.575, P  =  0.02) between extra \({\dot{{V}}\hbox{O}_{2}}\) and \({\Delta\dot{{V}}\hbox{O}_{2(6^{\prime}-3^{\prime})}}\) before training. These results show that an alteration of extra \({\dot{{V}}\hbox{O}_{2}}\) can occur without any change in the \({\dot{{V}}\hbox{O}_{2}}\) slow component, suggesting a possible dissociation of the two phenomena. Moreover, the fact that extra \({\dot{{V}}\hbox{O}_{2}}\) did not change after detraining could indicate that this improvement may remain after the loss of other adaptations.

Keywords

High-intensity interval training Detraining \({\dot{{V}}\hbox{O}_{2}}\)/work rate relationship \({\dot{{V}}\hbox{O}_{2}}\) slow component 

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • A. Marles
    • 1
    • 2
    • 3
  • R. Legrand
    • 1
  • N. Blondel
    • 1
    • 2
  • P. Mucci
    • 1
  • D. Betbeder
    • 2
  • F. Prieur
    • 1
    • 2
  1. 1.EA 3608 Physical activity, Sport and Health, Faculty of Sport Sciences and Physical EducationUniversity of Lille 2LilleFrance
  2. 2.Faculty of Sport SciencesUniversity of ArtoisLiévinFrance
  3. 3.UFR STAPSLievinFrance