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Article Dans Une Revue Canadian Journal of Applied Physiology Année : 2002

Critical Velocity and Time Spent at a High Level of for Short Intermittent Runs at Supramaximal Velocities

Grégory Dupont
  • Fonction : Auteur
Ghislaine Lensel
  • Fonction : Auteur
Serge Berthoin

Résumé

This study was designed to determine the intermittent critical velocity, the time spent at maximal oxygen uptake [Formula: see text] and the time spent above 90% of [Formula: see text] for short intermittent runs of 15 s at supramaximal velocities, alternating with 15 s of passive recovery. Nine male subjects performed 5 field-tests to exhaustion (tlim): 4 intermittent runs at 110%, 120%, 130% and 140% of maximal aerobic speed (MAS) and 1 continuous run at 100% of MAS. Results have shown the mean intermittent critical velocity (4.82 ± 0.41 m.s −1 ) was not significantly different from MAS (4.63 ± 0.37 m.s −1 ). Intermittent runs at 110% and 120% of MAS and the continuous run at 100% of MAS lead all subjects to reach [Formula: see text]. However, intermittent runs at 120% of MAS (202 ± 66 s) allowed subjects to spend a significantly longer time at [Formula: see text](p < .05) than intermittent runs at 110% (116 ± 42 s), 130% (50 ± 47 s), 140% (48 ± 59 s) of MAS and continuous run at 100% of MAS (120 ± 42 s). The time spent between 90 and 100% of [Formula: see text] was significantly longer (p < .05) for intermittent runs at 110% (383 ± 180 s) and for 120% (323 ± 272 s) of MAS than for intermittent runs at 130% (135 ± 133 s), 140% of MAS (77 ± 96 s) and for continuous run at 100% of MAS (217 ± 114 s). Consequently, this kind of intermittent exercise with intensities from intermittent critical velocity to 120% of MAS could be introduced in a training program when the purpose is to increase [Formula: see text]. Key words: intermittent exercise, maximal oxygen consumption, performance, training
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Dates et versions

hal-03359522 , version 1 (30-09-2021)

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Citer

Grégory Dupont, Nicolas Blondel, Ghislaine Lensel, Serge Berthoin. Critical Velocity and Time Spent at a High Level of for Short Intermittent Runs at Supramaximal Velocities. Canadian Journal of Applied Physiology, 2002, 27 (2), pp.103-115. ⟨10.1139/h02-008⟩. ⟨hal-03359522⟩
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