Document Detail


Maximal exercise cardiorespiratory responses of men and women during acute exposure to hypoxia.
MedLine Citation:
PMID:  3579807     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Three male and four female subjects were acutely exposed to normoxic and hypoxic gas mixtures (FIO2 = 17.39%, 14.40%, 11.81%) in a single-blind randomized fashion during four treadmill runs to volitional exhaustion. Maximal scores for oxygen consumption (VO2), carbon dioxide production and heart rate decreased linearly (p less than 0.01) with increasing hypoxia. Conversely, maximal scores for ventilation, ventilatory equivalent (VE/VO2) and R increased linearly (p less than 0.01) with decreasing FIO2. During hypoxia, no significant differences in work time or respiratory compensation threshold were evident. However, female subjects had significantly higher (p less than 0.05) VE/VO2 scores and showed a relative decrease in VO2max that was significantly less (p less than 0.01) than male subjects. It was concluded that young highly active females, when compared to males of similar age and relative condition, have a stronger adaptive response to acute hypoxia during a maximal treadmill run.
Authors:
D J Paterson; H Pinnington; A R Pearce; A R Morton
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Aviation, space, and environmental medicine     Volume:  58     ISSN:  0095-6562     ISO Abbreviation:  Aviat Space Environ Med     Publication Date:  1987 Mar 
Date Detail:
Created Date:  1987-05-29     Completed Date:  1987-05-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7501714     Medline TA:  Aviat Space Environ Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  243-7     Citation Subset:  IM; S    
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MeSH Terms
Descriptor/Qualifier:
Acute Disease
Adult
Anoxia / physiopathology*
Female
Heart Rate*
Humans
Male
Physical Exertion*
Random Allocation
Respiration*
Respiratory Function Tests
Sex Factors

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


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