Document Detail


Pulmonary oxygen uptake kinetics in nonsteady state.
MedLine Citation:
PMID:  8729469     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The body does not always achieve a steady state and is more often kept in a nonsteady state. It is important not only in terms of physiological anthropology but also in its application to rehabilitation and training to clarify whether oxygen transport or utilization is the limiting factor in oxygen uptake in the nonsteady state. Hypotheses concerning the limiting factor in oxygen uptake have their own rationales, and it is still controversial as to which is actually responsible. The limiting factor in oxygen uptake may vary according to exercise conditions. Under certain conditions, oxygen transport would be responsible for limiting the oxygen uptake, and under others, oxygen utilization or both oxygen transport and utilization would be responsible. These conditions differ according to the type of exercise (e.g. step exercise vs. cycling, leg vs. arm exercise, and dynamic vs. static exercise), posture, recruited muscle fibers, and other experimental conditions. Considering that oxygen uptake is regulated by coupling among respiration, circulation, and metabolism, it may be possible that interactions among these functions vary in a complicated manner according to exercise conditions, which may require a different limiting factor in regulating oxygen uptake.
Authors:
S Koga; T Shiojiri; Y Fukuba; Y Fukuoka; N Kondo
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Applied human science : journal of physiological anthropology     Volume:  15     ISSN:  1341-3473     ISO Abbreviation:  Appl Human Sci     Publication Date:  1996 Jan 
Date Detail:
Created Date:  1996-10-11     Completed Date:  1996-10-11     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  9506216     Medline TA:  Appl Human Sci     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  1-4     Citation Subset:  IM; S    
Affiliation:
Applied Physiology Laboratory, Kobe Design University, Japan.
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MeSH Terms
Descriptor/Qualifier:
Biological Transport
Blood Circulation / physiology
Exercise / physiology
Humans
Kinetics
Lung / metabolism*
Metabolism
Oxygen Consumption*
Respiration / physiology

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


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