Document Detail

Non-exhaustive test for aerobic capacity determination in swimming rats.
MedLine Citation:
PMID:  17213888     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to describe a double-bout exercise test for non-exhaustive aerobic capacity determination in swimming rats. Adult rats were submitted to 4 swimming tests at different intensities (4%, 6%, 7%, and 8% of body mass), with intervals of 48 h between them. Two exercise bouts of equal intensity lasting 5 min were performed, separated by 2 min with blood collection for lactate analysis. For each intensity, delta lactate was determined by subtracting lactate concentration at the end of the first effort from the lactate at the end of the second effort. Individual linear interpolation of delta lactate concentration enabled determination of a "null" delta, equivalent to the critical load (CL). Maximal lactate steady state (MLSS) was also determined. The estimated CL was of 4.8% body mass and the MLSS was observed at 100% of CL, with blood lactate of 5.20 mmol/L. At 90%, blood lactate stabilized, with a progressive increase to 110% CL. These results offer a potential determination of aerobic capacity in swimming rats.
Fúlvia de Barros Manchado; Claudio Alexandre Gobatto; Fabricio Azevedo Voltarelli; Maria Alice Rostom de Mello
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Applied physiology, nutrition, and metabolism = Physiologie appliquée, nutrition et métabolisme     Volume:  31     ISSN:  1715-5312     ISO Abbreviation:  -     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2007-01-10     Completed Date:  2007-06-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101264333     Medline TA:  Appl Physiol Nutr Metab     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  731-6     Citation Subset:  IM    
Sao Paulo State University-UNESP, Department of Physical Education, Av. 24A, 1515, Bela Vista, 13506-900 - Rio Claro, Sao Paulo, Brazil.
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MeSH Terms
Exercise Test
Lactic Acid / blood
Physical Conditioning, Animal* / physiology
Rats, Wistar
Reg. No./Substance:
50-21-5/Lactic Acid

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

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