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Oxygen uptake during repeated-sprint exercise
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. School of Sport Science, Exercise and Health, The University of Western Australia, Australia. (Swedish Winter Sports Research Centre)
School of Sport Science, Exercise and Health, The University of Western Australia, Australia.
2015 (English)In: Journal of Science and Medicine in Sport, ISSN 1440-2440, E-ISSN 1878-1861, Vol. 18, no 2, 214-218 p.Article in journal (Refereed) Published
Abstract [en]

Objectives

Repeated-sprint ability appears to be influenced by oxidative metabolism, with reductions in fatigue and improved sprint times related to markers of aerobic fitness. The aim of the current study was to measure the oxygen uptake (VO2) during the first and last sprints during two, 5 x 6-s repeated-sprint bouts.

Design

Cross-sectional study.

Methods

Eight female soccer players performed two, consecutive, 5 x 6-s maximal sprint bouts (B1 and B2) on five separate occasions, in order to identify the minimum time (trec) required to recover total work done (Wtot) in B1. On a sixth occasion, expired air was collected during the first and last sprint of B1 and B2, which were separated by trec.

Results

The trec was 10.9 ± 1.1 min. The VO2 during the first sprint was significantly less than the last sprint in each bout (p < 0.001), and the estimated aerobic contribution to the final sprint (measured in kJ) was significantly related to VO2max in both B1 (r = 0.81, p = 0.015) and B2 (r = 0.93, p = 0.001). In addition, the VO2 attained in the final sprint was not significantly different from VO2max in B1 (p = 0.284) or B2 (p = 0.448).

Conclusions

The current study shows that the VO2 increases from the first to the last of 5 x 6-s sprints and that VO2max may be a limiting factor to performance in latter sprints. Increasing VO2max in team-sport athletes may enable increased aerobic energy delivery, and consequently work done, during a bout of repeated sprints.

Place, publisher, year, edition, pages
2015. Vol. 18, no 2, 214-218 p.
Keyword [en]
Repeated-sprint ability; Team sports; Aerobic contribution; Accumulated oxygen deficit; Soccer; Football
National Category
Health Sciences Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-21469DOI: 10.1016/j.jsams.2014.02.002ISI: 000351649700019Scopus ID: 2-s2.0-84923573862OAI: oai:DiVA.org:miun-21469DiVA: diva2:699362
Note

Publ online 10 Feb 2014

Available from: 2014-02-27 Created: 2014-02-27 Last updated: 2016-01-08Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • Other style
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  • de-DE
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  • Other locale
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Output format
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  • asciidoc
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