Document Detail

Ventilatory responses to CO2 rebreathing at rest and during exercise in untrained subjects and athletes.
MedLine Citation:
PMID:  1003690     Owner:  NLM     Status:  MEDLINE    
Ventilatory responses to CO2 during rest and exercise were studied in 10 marathon runners and 14 untrained subjects by the rebreathing method. The average responses of the untrained subjects and athletes at rest as meausred by the slope of VE-PACO2 curves were 1.86 and 1.12 liters/min-mmHg, the difference being statistically significant (p less than 0.05). During exercise the slope of VE-PACO2 decreased from 1.86 to 0.62 in the controls, and from 1.12 to 0.62 in the athletes (p less than 0.01). The mean slope obtained in the athletes, at rest and during exercise, was about 50-60% of that in untrained subjects (p less than 0.05). The difference in the VE-PACO2 curves between the athlete and the untrained group may be due to a reduced exitability of the respiratory center and/or by a reduced input signal.
M Miyamura; T Yamashina; Y Honda
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Japanese journal of physiology     Volume:  26     ISSN:  0021-521X     ISO Abbreviation:  Jpn. J. Physiol.     Publication Date:  1976  
Date Detail:
Created Date:  1977-02-24     Completed Date:  1977-02-24     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  2985184R     Medline TA:  Jpn J Physiol     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  245-54     Citation Subset:  IM; S    
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MeSH Terms
Carbon Dioxide*
Lung Volume Measurements
Physical Exertion*
Physical Fitness*
Reg. No./Substance:
124-38-9/Carbon Dioxide; 7782-44-7/Oxygen

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