Document Detail


The influence of crank rate on peak oxygen consumption during arm crank ergometry.
MedLine Citation:
PMID:  11820689     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of this study was to assess the influence of three imposed crank rates on the attainment of peak oxygen consumption (VO2peak) and other physiological responses during incremental arm crank ergometry. Twenty physically active, although non-specifically trained, males volunteered for the study. They completed an exercise protocol using an electrically braked arm ergometer (Lode Angio, Groningen, Netherlands) at crank rates of 60, 70 and 80 rev x min(-1). The order of tests was randomized and they were separated by at least 2 days. Peak VO2 was significantly higher (P < 0.05) at 70 and 80 rev x min(-1) than at 60 rev x min(-1). Peak ventilation volume increased as a function of crank rate and was higher (P < 0.05) at 80 than at 60 rev x min(-1). Peak heart rate was higher (P < 0.05) at 70 and 80 rev x min(-1) than at 60 rev x min(-1). Furthermore, 70 and 80 rev x min(-1) resulted in an extended test time compared with 60 rev x min(-1). The greater physiological responses observed during the tests at the two faster crank rates might have been the result of a postponement of acute localized neuromuscular fatigue, allowing for more work to be completed. We recommend, therefore, that an imposed crank rate between 70 and 80 rev x min(-1) should be used to elicit VO2peak and other physiological responses in arm crank ergometry.
Authors:
P M Smith; M J Price; M Doherty
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Journal of sports sciences     Volume:  19     ISSN:  0264-0414     ISO Abbreviation:  J Sports Sci     Publication Date:  2001 Dec 
Date Detail:
Created Date:  2002-01-31     Completed Date:  2002-05-10     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8405364     Medline TA:  J Sports Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  955-60     Citation Subset:  IM    
Affiliation:
Department of Sport and Exercise Science, University of Luton, UK. paul.smith@luton.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Adult
Exercise Test*
Heart Rate
Humans
Lactic Acid / blood
Male
Oxygen Consumption*
Physical Exertion
Prospective Studies
Chemical
Reg. No./Substance:
50-21-5/Lactic Acid

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


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