A comparison of methods to determine maximal accumulated oxygen deficit in running |
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| Authors: | Laurent Bosquet Antoine Duchene Paul Raoul Delhors Gregory Dupont Helen Carter |
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| Institution: | 1. School of Kinesiology, University of Montreal , Montreal, Quebec, Canada laurent.bosquet@umontreal.ca;3. Faculty of Sport Sciences, University of Lille 2 , Ronchin, France;4. Faculty of Sport Sciences, University of Artois , Lievin, France;5. Department of Sport Sciences , University of Brighton , Eastbourne, UK |
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| Abstract: | Abstract The aim of this study was to compare maximal accumulated oxygen deficit (hereafter O2 deficit) estimated from the methods of Whipp et al. (1986 Whipp, B. J., Ward, S. A. and Wasserman, K. 1986. Respiratory markers of the anaerobic threshold. Advances in Cardiology, 35: 47–64. Crossref], PubMed] , Google Scholar]), Medbo et al. (1988 Medbo, J. I., Mohn, A. C., Tabata, I., Bahr, R., Vaage, O. and Sejersted, O. M. 1988. Anaerobic capacity determined by maximal accumulated O2 deficit. Journal of Applied Physiology, 64: 50–60. PubMed], Web of Science ®] , Google Scholar]), and Hill et al. (1998 Hill, D. W., Ferguson, C. S. and Ehler, K. L. 1998. An alternative method to determine maximal accumulated O2 deficit in runners. European Journal of Applied Physiology, 79: 114–117. Crossref], Web of Science ®] , Google Scholar]) to determine whether they agree sufficiently to be used interchangeably. Nineteen moderately to highly trained endurance runners first performed an incremental test to exhaustion for the determination of maximal oxygen uptake (Vdot]O2max) and peak treadmill speed, followed by six randomly ordered constant-speed tests at 95, 100, 105, 110, 110, and 120% of peak treadmill speed. All tests were separated by at least 72 h and were performed within 4 weeks. The method of Whipp produced an O2 deficit estimate that was lower than that derived from the method of Hill or Medbo (bias ± 95% limits of agreement: ?29.6 ± 36.6 and ?26.1 ± 32.8 ml · kg?1, respectively; P < 0.001). The O2 deficit did not differ between the methods of Hill and Medbo (bias ± 95% limits of agreement: 3.5 ± 41.6 ml · kg?1; n.s.). However, poor correlations (0.21 < r < 0.33; n.s.) together with wide limits of agreement between O2 deficit estimates (70 – 80% of the mean response) clearly question using these methods interchangeably. |
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| Keywords: | Anaerobic capacity [Vdot]O2 kinetics non-linear estimation oxygen demand |
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