Relationship between oxygen uptake kinetics and performance in repeated running sprints

Details

Serval ID
serval:BIB_AF3AB744ED4E
Type
Article: article from journal or magazin.
Collection
Publications
Title
Relationship between oxygen uptake kinetics and performance in repeated running sprints
Journal
European Journal of Applied Physiology
Author(s)
Dupont G., Millet G.P., Guinhouya C., Berthoin S.
ISSN
1439-6319
Publication state
Published
Issued date
09/2005
Peer-reviewed
Oui
Volume
95
Number
1
Pages
27-34
Language
english
Notes
Publication types: Controlled Clinical Trial ; Journal Article
Abstract
The purpose of this study was to test the hypothesis that subjects having a shorter time constant for the fast component of VO2 kinetics in a transition from rest to constant exercise would maintain their speed for a longer time during repeated sprint exercise (RSE). Eleven male soccer players completed a graded test, two constant exercises at 60% maximal aerobic speed and RSE, consisting of fifteen 40-m sprints alternated with 25 s of active recovery. All the tests were performed on the field (200 m indoor track). The parameters of the VO2 kinetics (time delay, time constant, and amplitude of the primary phase) during the two constant exercises were modeled. All subjects elicited VO2 during the RSE. A significant correlation was found between VO2 and the relative decrease in speed during the 15 sprints (r=0.71; p < 0.05), but not between VO2 and the cumulated time for the 15 sprints (r=0.48; p > 0.05). There were significant correlations between the time constant of the primary phase and the relative decrease in speed during the 15 sprints (r=0.80; p < 0.01) and the cumulated time for the 15 sprints (r=0.80; p < 0.01). These results suggest that individuals with faster VO2 kinetics during constant load exercise might also have a faster adjustment of VO2 during RSE leading to a shorter cumulated time and a lower relative decrease in speed during the 15 sprints.
Keywords
Adaptation, Physiological/physiology, Adult, Humans, Kinetics, Male, Metabolic Clearance Rate, Oxygen/metabolism, Oxygen Consumption/physiology, Physical Endurance/physiology, Physical Exertion/physiology, Psychomotor Performance/physiology, Running/physiology, Soccer/physiology, Statistics as Topic
Pubmed
Create date
25/09/2008 8:01
Last modification date
20/08/2019 15:18
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