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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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AEROBIC FITNESS LEVEL TYPICAL OF ELITE ATHLETES IS NOT ASSOCIATED WITH EVEN FASTER VO2 KINETICS DURING CYCLING EXERCISE |
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Tiago R. Figueira, Fabrizio Caputo, Carlos E.P. Machado and Benedito S. Denadai  |
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Human Performance Laboratory, Rio Claro S.P., Brasil. |
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© Journal of Sports Science and Medicine (2008) 7, 132 - 138 Search Google Scholar for Citing Articles |
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| ABSTRACT | |||
| The aim of this study was to address the question if the VO2
kinetics is further improved as the aerobic training status increases from
trained to elite level athletes. Maximal oxygen uptake (VO2max),
work-rate associated to VO2max (IVO2max) and VO2
kinetics of moderate (Mod) and maximal exercise (Max) were determined in
fifty- five subjects. Then, they were assigned into three groups: low (LF),
intermediate (IF) and high (HF) aerobic fitness level. In average, the VO2max
of LF, IF and HF groups were, respectively, 36.0 ± 3.1, 51.1 ± 4.5 and 68.1
± 3.9 ml·kg·min-1 (p < 0.05 among each other). VO2
kinetics mean response time of both exercise intensities were significantly
faster (p < 0.05) in HF (Mod, 27.5 ± 5.5 s; Max, 32.6 ± 8.3 s) and IF (Mod,
25.0 ± 3.1 s; Max, 42.6 ± 10.4 s) when compared to LF (Mod, 35.7 ± 7.9 s;
Max: 57.8 ± 17.8 s). We can conclude that VO2 kinetics is improved
as the fitness level is increased from low to intermediate but not further
improved as the aerobic fitness level increases from intermediate to high.
Key words: Oxidative metabolism, VO2 kinetics, aerobic training. |
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