Document Detail

The anaerobic threshold measurement to evaluate exercise performance.
MedLine Citation:
PMID:  6421216     Owner:  NLM     Status:  MEDLINE    
During exercise, the oxygen consumption above which aerobic energy production is supplemented by anaerobic mechanisms, and which results in a significant increase in lactate, is termed the anaerobic threshold (AT). This power output has important functional implications because it is a demarcation of the work rate above which metabolic acidosis accelerates the stimulation to breathing, and exercise endurance becomes reduced. The justification for relating lactate increase to tissue anaerobiosis during exercise is presented, and the gas exchange methods for measuring the AT are described. The form of work affects the AT, treadmill being about 10% greater than cycling in sedentary subjects. It is useful for predicting the ability of the subject to sustain a given work rate for a prolonged period and for determining the VO2 above which there is cardiovascular insufficiency in meeting tissue O2 requirements.
K Wasserman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American review of respiratory disease     Volume:  129     ISSN:  0003-0805     ISO Abbreviation:  Am. Rev. Respir. Dis.     Publication Date:  1984 Feb 
Date Detail:
Created Date:  1984-03-22     Completed Date:  1984-03-22     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0370523     Medline TA:  Am Rev Respir Dis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  S35-40     Citation Subset:  AIM; IM; S    
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MeSH Terms
Acidosis / metabolism
Bicarbonates / metabolism
Carbon Dioxide / metabolism
Cardiovascular Diseases / diagnosis
Exercise Test
Lactates / analysis*,  metabolism
Lung Diseases / diagnosis
Mitochondria, Muscle / metabolism
NAD / metabolism
Oxygen / metabolism
Oxygen Consumption*
Physical Exertion*
Pulmonary Gas Exchange
Reg. No./Substance:
0/Bicarbonates; 0/Lactates; 124-38-9/Carbon Dioxide; 53-84-9/NAD; 7782-44-7/Oxygen

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

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