Document Detail


Noninvasive estimation of the lactate threshold in a subject with dissociated ventilatory and pulmonary gas exchange indices: a case report.
MedLine Citation:
PMID:  18079233     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This case report describes the responses to incremental work-rate exercise in a healthy subject (with normal pulmonary function), for whom the pulmonary gas exchange (V-slope) and ventilatory-related indexes (ie, ventilatory equivalents and end-tidal partial pressures for O2 and CO2) uncharacteristically do not occur at the same metabolic rate. Based on the results of additional constant-work-rate exercise tests, we propose that in the (occasional) event of such a dissociation between the V-slope and ventilatory-related responses normally associated with the lactate threshold (theta L), then the V-slope index should take priority as the theta L estimator.
Authors:
Brian J Whipp; Piergiuseppe Agostoni
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Chest     Volume:  132     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-12-14     Completed Date:  2008-02-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1994-7     Citation Subset:  AIM; IM    
Affiliation:
Institute of Membrane and Systems Biology, University of Leeds, Worsley Building, Level 9, Leeds LS2 9JT, UK. b.whipp@leeds.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Adult
Carbon Dioxide / metabolism*
Exercise Test
Humans
Lactates / blood*
Male
Oxygen / metabolism*
Pulmonary Gas Exchange / physiology*
Respiratory Function Tests
Chemical
Reg. No./Substance:
0/Lactates; 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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