HETTINGA, FLORENTINA J and DE KONING, JOS J and FOSTER, CARL (2009) V˙O2 Response in Supramaximal Cycling Time Trial Exercise of 750 to 4000 m. Medicine & Science in Sports & Exercise, 41 (1). pp. 230-236. DOI https://doi.org/10.1249/mss.0b013e3181831f0f
HETTINGA, FLORENTINA J and DE KONING, JOS J and FOSTER, CARL (2009) V˙O2 Response in Supramaximal Cycling Time Trial Exercise of 750 to 4000 m. Medicine & Science in Sports & Exercise, 41 (1). pp. 230-236. DOI https://doi.org/10.1249/mss.0b013e3181831f0f
HETTINGA, FLORENTINA J and DE KONING, JOS J and FOSTER, CARL (2009) V˙O2 Response in Supramaximal Cycling Time Trial Exercise of 750 to 4000 m. Medicine & Science in Sports & Exercise, 41 (1). pp. 230-236. DOI https://doi.org/10.1249/mss.0b013e3181831f0f
Abstract
Purpose: Limited research has been done on the V̇O <inf>2</inf> response to time trial exercise in the supramaximal domain or during free range exercise typical of competition. The present study was designed to measure and to model the V̇O <inf>2</inf> response during supramaximal time trial exercise. Methods: Well-trained cyclists (n = 9) performed a 1-min incremental exercise test to obtain maximal power output (P <inf>V̇O2max</inf>) and four cycle ergometer time trials of different distances (750, 1500, 2500, and 4000 m). Athletes were instructed to finish in as little time as possible. V̇O <inf>2</inf> was measured breath-by-breath and modeled monoexponentially over the first 54 s (750 m) or 114 s (1500, 2500, and 4000 m) of the time trials. Results: Mean P <inf>V̇O2max</inf> in the incremental test was 383 ± 28 W. Mean V̇O <inf>2max</inf> was 4.5 ± 0.2 Lmin <sup>-1</sup>. All time trials were characterized by an initial burst in power output during the first 15 s (175 ± 23%, 149 ± 14%, 145 ± 14%, 139 ± 10% P <inf>V̇O2max</inf>) being largest for 750 m. Simultaneously, the mean response time was significantly smaller in 750 m compared with all other trials (18.8 ± 2.2, 20.9 ± 1.9, 20.8 ± 1.5, and 21.2 ± 2.2 s). Conclusion: Near maximal values of V̇O <inf>2</inf> can be reached within 2 min of strenuous exercise. The larger initial burst in power output in 750 m was accompanied by a faster V̇O <inf>2</inf> response and seems to be of importance to trigger the aerobic system maximally. Copyright © 2008 by the American College of Sports Medicine.
Item Type: | Article |
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Uncontrolled Keywords: | PERFORMANCE; COMPETITION; OXYGEN UPTAKE KINETICS; MODELING; POWER OUTPUT; AEROBIC POWER |
Subjects: | R Medicine > RC Internal medicine > RC1200 Sports Medicine |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Sport, Rehabilitation and Exercise Sciences, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 04 Dec 2013 14:58 |
Last Modified: | 17 Jun 2025 23:26 |
URI: | http://repository.essex.ac.uk/id/eprint/8282 |