ISSN:
1439-6327
Keywords:
Maximal aerobic velocity
;
Track test
;
Lactate curve
;
Running performances
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary To investigate the different ways of assessing the running velocity at which maximal oxygen uptake $$(\dot V{\text{O}}_{{\text{2max}}} )$$ occurs, or maximal aerobic velocity (νa max), 32 well-trained runners (8 female and 24 male) were studied. The νa max and the running velocity corresponding to a blood lactate concentration of 4 mmol · l−1 (ν1a4) were measured during a progressive treadmill session. Within the week preceding or following the treadmill measurement the subjects completed a Université de Montreal Track-Test (UMTT). The velocity corresponding to the last stage of this test (νUMTT) was slightly higher than νa max: 6.08m · s−1, SD 0.41, vs 6.01 m · s−1, SD 0.44 (P 〈 0.03) but these two velocities were strongly correlated (r = 0.92,P 〈 0.001). The heart rate values corresponding to these velocities were similar and well correlated (r = 0.79,P 〈 0.01); the corresponding blood lactate values had similar mean values: 10.5 mmol · l−1, SD 2.7 vs 11.8 mmol · l−1, SD 2.5, but were not correlated. Both νa max and νUMTT correlated well with the best performance sustained over 1500 m during the season. These results suggest that the UMTT provides a value of νa max as accurately as a treadmill measurement and that either could be used to measure the running velocity corresponding to $$\dot V{\text{O}}_{{\text{2max}}} .$$ The ν1a4 was 86.6%, SD 2.6 of νa max; these two velocities correlated strongly. Thus, in well trained runners, ν1a4, when measured with a well-defined procedure, corresponds to a constant fraction of νa max and depends then on $$\dot V{\text{O}}_{{\text{2max}}} $$ and the energy cost of running.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00626760
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