Int J Sports Med 2001; 22(1): 27-33
DOI: 10.1055/s-2001-11357
Training and Testing
Georg Thieme Verlag Stuttgart · New York

Relationship Between Run Times to Exhaustion at 90, 100, 120, and 140 % of vV˙O2max and Velocity Expressed Relatively to Critical Velocity and Maximal Velocity

N. Blondel1, 2 ,  S. Berthoin1 ,  V. Billat1 ,  G. Lensel1
  • 1 Laboratoire d'Etudes de la Motricité Humaine (LEMH), Faculté des Sciences du Sport et de l'Education Physique, Université de Lille 2, France
  • 2 Laboratoire d'Analyse Multidisciplinaire des Activités Physiques et Sportives (LAMAPS), UFRSTAPS de Liévin, Université d'Artois, France
Further Information

Publication History

Publication Date:
31 December 2001 (online)

The aim of the present study was to explain the inter-individual variability in running time to exhaustion (tlim) when running speed was expressed as a percentage of the velocity, associated with maximal oxygen uptake (vV˙O2max). Indeed for the same percentage of vV˙O2max the anaerobic contribution to energy supply is different and could be dependent on the critical velocity (Cv) and also on the maximal running velocity (vmax). Ten subjects ran four tlim at 90, 100, 120, and 140 % of vV˙O2max; mean and standard deviation for tlim were 839 ± 236 s, 357 ± 110 s, 122 ± 27 s, and 65 ± 17s, respectively. Each velocity was then expressed 1) as a percentage of the difference between vV˙O2max and Cv (%AeSR); 2) as a percentage of the difference between vmax and Cv (%MSR); 3) as a percentage of the difference between vmax and vV˙O2max (%AnSR). Highest correlations were found between tlim90 and tlim100 and velocity expressed as %MSR (r = - 0.82, p < 0.01 and r = - 0.75, p < 0.01), and between tlim120 and tlim140 and velocity expressed as %AnSR (r = -0 .83, p < 0.01 and r = - 0.94, p < 0.001). These results show that the same intensity relative to aerobic contribution did not represent the same absolute intensity for all and could partly explain variability in tlim. Therefore expressing intensity as a percentage of MSR for sub-maximal and maximal velocities and as a percentage of AnSR for supra-maximal velocities allows individual differences in anaerobic work capacity to be taken into account and running times to exhaustion to be predicted accurately.

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S. Berthoin

Laboratoire d'Etudes de la Motricité HumaineFaculté des Sciences du Sport et de l'Education Physique

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