Document Detail


A metabolic cart for measurement of oxygen uptake during human exercise using inspiratory flow rate.
MedLine Citation:
PMID:  12111279     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study evaluated an ergo-spirometry system based on mixed expired gas for gas analyses and an inspiratory based determination of flow. There were 74 paired samples of oxygen uptake (VO(2)) and related variables including pulmonary ventilation (V(E)), fractional concentrations of expired CO(2) and O(2) ( F(E)CO(2) and F(E)O(2), respectively), as well as CO(2) output (VCO(2)) which were obtained from the metabolic cart and a Douglas bag system during 22 min submaximal and 5-8 min maximal running on a treadmill. For F(E)CO(2) and VCO(2) the metabolic cart gave readings that were 2.6% and 1.8% higher and for F(E)O(2) 0.2% lower than the Douglas bag method ( P<0.05). For the metabolic cart and the Douglas bag method the coefficient of variation (CV) for repeated determinations of VO(2) was 1.9% and 1.8%, respectively. For VO(2) and V(E), there were no significant differences between the two methods and the 95% confidence interval of the difference in VO(2) was within -30 and +20 ml min(-1). The CV of the differences in VO(2) between the two systems was 2.4% and it is concluded that a metabolic cart method based on inspiratory flow rate is suitable for measurement of VO(2) and V(E) during both submaximal and maximal exercise.
Authors:
Kurt Jensen; Susanne Jørgensen; Lars Johansen
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article     Date:  2002-04-26
Journal Detail:
Title:  European journal of applied physiology     Volume:  87     ISSN:  1439-6319     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2002 Jul 
Date Detail:
Created Date:  2002-07-11     Completed Date:  2003-02-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  202-6     Citation Subset:  IM    
Affiliation:
Team Danmarks Testcenter, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense University, Campusvej 55, 5230 Odense M, Denmark. kjensen@health.sdu.dk
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MeSH Terms
Descriptor/Qualifier:
Adult
Carbon Dioxide / analysis*,  metabolism
Equipment Design
Equipment Failure Analysis
Exercise / physiology*
Exercise Test / instrumentation,  methods
Humans
Middle Aged
Oxygen / analysis*
Oxygen Consumption / physiology*
Physical Endurance / physiology
Pulmonary Gas Exchange / physiology
Pulmonary Ventilation / physiology*
Reproducibility of Results
Running / physiology
Sensitivity and Specificity
Spirometry / instrumentation*,  methods
Chemical
Reg. No./Substance:
124-38-9/Carbon Dioxide; 7782-44-7/Oxygen

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


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