Document Detail


Acute high-intensity exercise with low energy expenditure reduced LDL-c and total cholesterol in men.
MedLine Citation:
PMID:  19551402     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A reduction in LDL cholesterol and an increase in HDL cholesterol levels are clinically relevant parameters for the treatment of dyslipidaemia, and exercise is often recommended as an intervention. This study aimed to examine the effects of acute, high-intensity exercise ( approximately 90% VO(2max)) and varying carbohydrate levels (control, low and high) on the blood lipid profile. Six male subjects were distributed randomly into exercise groups, based on the carbohydrate diets (control, low and high) to which the subjects were restricted before each exercise session. The lipid profile (triglycerides, VLDL, HDL cholesterol, LDL cholesterol and total cholesterol) was determined at rest, and immediately and 1 h after exercise bouts. There were no changes in the time exhaustion (8.00 +/- 1.83; 7.82 +/- 2.66; and 9.09 +/- 3.51 min) and energy expenditure (496.0 +/- 224.8; 411.5 +/- 223.1; and 592.1 +/- 369.9 kJ) parameters with the three varying carbohydrate intake (control, low and high). Glucose and insulin levels did not show time-dependent changes under the different conditions (P > 0.05). Total cholesterol and LDL cholesterol were reduced after the exhaustion and 1 h recovery periods when compared with rest periods only in the control carbohydrate intake group (P < 0.05), although this relation failed when the diet was manipulated. These results indicate that acute, high-intensity exercise with low energy expenditure induces changes in the cholesterol profile, and that influences of carbohydrate level corresponding to these modifications fail when carbohydrate (low and high) intake is manipulated.
Authors:
Fabio S Lira; Nelo E Zanchi; Adriano E Lima-Silva; Fl?vio O Pires; R?mulo C Bertuzzi; Ronaldo V Santos; Erico C Caperuto; Maria A Kiss; Mar?lia Seelaender
Publication Detail:
Type:  Journal Article     Date:  2009-06-24
Journal Detail:
Title:  European journal of applied physiology     Volume:  107     ISSN:  1439-6327     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-08-25     Completed Date:  2009-12-03     Revised Date:  2010-02-22    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  203-10     Citation Subset:  IM    
Affiliation:
Molecular Biology of the Cell Group, Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of S?o Paulo, S?o Paulo, 05508-900 Brazil. fiolira@usp.br
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MeSH Terms
Descriptor/Qualifier:
Adult
Caloric Restriction / methods
Carbohydrate Metabolism / physiology
Cholesterol / blood*,  metabolism
Cholesterol, LDL / blood*,  metabolism
Diet, Carbohydrate-Restricted
Down-Regulation / physiology
Energy Metabolism / physiology*
Exercise / physiology*
Exercise Test
Humans
Lipid Metabolism / physiology
Male
Physical Exertion / physiology*
Time Factors
Young Adult
Chemical
Reg. No./Substance:
0/Cholesterol, LDL; 57-88-5/Cholesterol

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


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