Slow component of VO2 during level and uphill treadmill running : relationship to aerobic fitness in endurance runners

Reis, V. M., Guidetti, L., Duarte, J. A., Ascensao, A., Silva, A. J., Sampaio, J. E., Russell, A. P. and Baldari, C. 2007, Slow component of VO2 during level and uphill treadmill running : relationship to aerobic fitness in endurance runners, Journal of sports medicine and physical fitness, vol. 47, no. 2, pp. 135-140.

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Title Slow component of VO2 during level and uphill treadmill running : relationship to aerobic fitness in endurance runners
Author(s) Reis, V. M.
Guidetti, L.
Duarte, J. A.
Ascensao, A.
Silva, A. J.
Sampaio, J. E.
Russell, A. P.
Baldari, C.
Journal name Journal of sports medicine and physical fitness
Volume number 47
Issue number 2
Start page 135
End page 140
Publisher Minerva Medica
Place of publication Torino, Italy
Publication date 2007-06
ISSN 0022-4707
1827-1928
Keyword(s) oxygen kinetics
endurance
treadmill
lactate threshold
Summary The aim of this study was to compare the oxygen uptake (VO^sub 2^) slow component (SC) during level and uphill running in endurance runners, and to identify associations between the SC and the following aerobic fitness indicators: peak VO^sub 2^, running speed associated with the peak VO^sub 2^ (Vpeak), running speed at the lactic threshold and the VO^sub 2^ fraction elicited at the lactic threshold. Fourteen male endurance-trained runners underwent several 6-min bouts of level (LTR) and 10.5% uphill treadmill running. VO^sub 2^ SC was calculated as the difference between mean VO^sub 2^ during the 6th and the 3rd minutes. The highest mean values for the SC were 181.9±240.2 mL*min^sup -1^ for level running at ~94% peak VO^sub 2^ and 105.4±154.6 mL*min^sup -1^ for uphill running at ~90% peak VO^sub 2^. The SC observed during the last bout of the LTR correlated with peak VO^sub 2^ and with Vpeak (-0.71 and -0.76, P<0.05, respectively). The results show that for endurance-trained runners the magnitude of the SC is not affected by the treadmill gradient and that within a homogeneous sample of endurance-trained runners the SC does not correlate with indicators of aerobic fitness.
Language eng
Field of Research 110602 Exercise Physiology
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2007, Edizioni Minerva Medica
Persistent URL http://hdl.handle.net/10536/DRO/DU:30019808

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