Document Detail


The effect of sustained heavy exercise on the development of pulmonary edema in trained male cyclists.
MedLine Citation:
PMID:  15705536     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To determine whether intense, prolonged activity can induce transient pulmonary edema, eight highly trained male cyclists (mean +/- S.D.: age, 26.9 +/- 3.0 years; height, 179.9 +/- 5.7 cm; weight, 76.1 +/- 6.5 kg) performed a 45-min endurance cycle test (ECT). V(O2,max) was determined (4.84 +/- 0.4 L min(-1), 63.7 +/- 2.6 ml min(-1) g(-1)) and the intensity of exercise for the ECT was set at 10% below ventilatory threshold (approximately 76% V(O2, max) 300 +/- 25 W). Pre- and post-exercise pulmonary diffusion (DL(CO)) measurements and magnetic resonance imaging of the lung were made. DL(CO) and pulmonary capillary blood volume (VC) decreased 1h post-exercise by 12% (P = 0.004) and 21% (P = 0.017), respectively, but no significant change in membrane diffusing capacity (DM) was found. The magnetic resonance scans demonstrated a 9.4% increase (P = 0.043) in pulmonary extravascular water 90 min post-exercise. These data support the theory that high intensity, sustained exercise in well-trained athletes can result in transient pulmonary edema.
Authors:
D C McKenzie; T J O'Hare; J Mayo
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Respiratory physiology & neurobiology     Volume:  145     ISSN:  1569-9048     ISO Abbreviation:  Respir Physiol Neurobiol     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-02-11     Completed Date:  2005-05-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  101140022     Medline TA:  Respir Physiol Neurobiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  209-18     Citation Subset:  IM    
Affiliation:
Allan McGavin Sports Medicine Centre and School of Human Kinetics, The University of British Columbia, 3055 Wesbrook Mall, Vancouver, BC, Canada V6T 1Z3. kari@interchange.ubc.ca
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MeSH Terms
Descriptor/Qualifier:
Adult
Bicycling / injuries*
Exercise / physiology*
Exercise Test / methods
Humans
Magnetic Resonance Imaging / methods
Male
Oxygen Consumption / physiology
Physical Endurance / physiology*
Pulmonary Diffusing Capacity / physiology
Pulmonary Edema / pathology,  physiopathology*
Pulmonary Gas Exchange
Respiratory Function Tests / methods
Ventilation-Perfusion Ratio

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


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