Document Detail


Incidence of the plateau at V˙O 2max is dependent on the anaerobic capacity.
MedLine Citation:
PMID:  21072741     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to address if there is an association between the plateau at V˙O (2max) and the anaerobic capacity. 9 well-trained cyclists (age 22.2 ± 3.5 yr, height 182.5 ± 5.0 cm, mass 75.7 ± 8.7 kg, V˙O (2max) 59.3 ± 4.8 ml x kg(-1) x min(-1)completed both an incremental step test of 20 W x min(-1) starting at 120 W for determination of maximal oxygen uptake (MOU) and a maximally accumulated oxygen deficit (MAOD) trial at 125% MOU for estimation of anaerobic capacity. Throughout all trials expired air was recorded on a breath-by-breath basis. A significant inverse relationship was observed between the MAOD and the Δ V˙O (2) during the final 60 s of the MOU test (r=-0.77, p=0.008). Of the 9 participants it was noted that only 4 exhibited a plateau at MOU. There were non-significant differences for V˙O (2) and the associated secondary criteria for those exhibiting a plateau and the non-plateau responders, despite a significant difference for MAOD (p=0.041) between groups. These data suggest that incidence of the plateau at MOU is dependent on anaerobic substrate metabolism and that ranges of responses reported in the literature may be a consequence of variations in anaerobic capacity amongst participants.
Authors:
D Gordon; S Hopkins; C King; D Keiller; R J Barnes
Publication Detail:
Type:  Journal Article     Date:  2010-11-11
Journal Detail:
Title:  International journal of sports medicine     Volume:  32     ISSN:  1439-3964     ISO Abbreviation:  Int J Sports Med     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-28     Completed Date:  2011-06-13     Revised Date:  2011-08-10    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1-6     Citation Subset:  IM    
Copyright Information:
© Georg Thieme Verlag KG Stuttgart · New York.
Affiliation:
Anglia Ruskin University, Life Sciences, Unit for Sport and Exercise Sciences, Cambridge, United Kingdom. dan.gordon@anglia.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Adult
Anaerobic Threshold / physiology*
Bicycling / physiology
Energy Metabolism / physiology
Humans
Male
Monitoring, Physiologic / methods
Oxygen Consumption / physiology*
Physical Endurance / physiology
Pulmonary Gas Exchange / physiology
Young Adult
Comments/Corrections
Comment In:
Int J Sports Med. 2011 Jun;32(6):481; author reply 482   [PMID:  21698549 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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