Document Detail

Cardiopulmonary responses to exercise in obese girls and young women.
MedLine Citation:
PMID:  1150548     Owner:  NLM     Status:  MEDLINE    
A study of exercise performance was carried out in 17 obese girls and young adults. During submaximal steady-state bicycle exercise oxygen intake (Vo2) for a given work output (W) was raised in obese subjects but minute ventilation at a fixed carbon dioxide output, gas exchange, blood gases, and cardiac output at a given VO2 were similar to the values previously found for normals. In obese subjects high levels of VO2 for fixed W were also obtained on the treadmill but when these were standardized for body weight (unlike the bicycle test) it was shown that the obese girls and women exercised within the normal (expected) range of aerobic energy expenditure. During maximal performance the absolute VO2 max was the same in obese and nonobese subjects but for a given body weight, lean body mass, and leg muscle (plus) bone volume, VO2max was reduced by 23.8, 16.3, and 24.5% respectively, in the former group. It was concluded that obesity though having minimal affect on responses to submaximal exercise is nevertheless associated with a marked reduction in physiological performance at or near maximal effort.
C T Davies; S Godfrey; M Light; A J Sargeant; E Zeidifard
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of applied physiology     Volume:  38     ISSN:  0021-8987     ISO Abbreviation:  J Appl Physiol     Publication Date:  1975 Mar 
Date Detail:
Created Date:  1975-10-28     Completed Date:  1975-10-28     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376576     Medline TA:  J Appl Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  373-6     Citation Subset:  IM; S    
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MeSH Terms
Body Composition
Body Weight
Carbon Dioxide / blood
Cardiac Output*
Oxygen / blood
Oxygen Consumption
Physical Exertion*
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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