Document Detail


Metabolic effects and body fat mass changes in obese subjects on a very-low-calorie diet with and without intensive physical training.
MedLine Citation:
PMID:  3322166     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
During 4 weeks, 40 obese subjects (body mass index 30-45 W/H2) were treated with a 300-kcal mixed diet alone or in combination with exercise training on a bicycle ergometer in a metabolic ward. Exercise had a minor effect on body weight, reflected by an additional fat loss of 1.7 kg (expected loss: 4.0 kg). Hyperinsulinemia was improved by diet and normalized by diet combined with exercise; a similar effect was observed regarding C-peptide levels. Plasma concentrations of epinephrine and norepinephrine decreased in both groups. At maximal work, norepinephrine levels were higher in the group with exercise. Free fatty acids and free glycerol increased at rest as well as during exercise in subjects on both regimens, the difference being more pronounced in the exercise group. Enhanced oxidation of fat was substantiated by lower respiratory quotients during endurance exercise. Working capacity increased and blood pressure decreased considerably as a consequence of physical training. It is concluded that exercise training in addition to a hypocaloric diet lowers body weight and body fat, although to a lower degree than expected. During and following bouts of exercise, fat mobilization and oxidation is enhanced, but these effects are probably counteracted at rest. On the other hand, the diet-induced deterioration of physical performance is overcompensated.
Authors:
A Wirth; I Vogel; A Schömig; G Schlierf
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Annals of nutrition & metabolism     Volume:  31     ISSN:  0250-6807     ISO Abbreviation:  Ann. Nutr. Metab.     Publication Date:  1987  
Date Detail:
Created Date:  1988-01-29     Completed Date:  1988-01-29     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8105511     Medline TA:  Ann Nutr Metab     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  378-86     Citation Subset:  IM    
Affiliation:
Clinic Teutoburger Wald, Bad Rothenfelde, FRG.
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / metabolism*,  pathology
Catecholamines / blood
Combined Modality Therapy
Diet, Reducing*
Exercise Therapy*
Fatty Acids, Nonesterified / blood
Female
Glycerol / blood
Humans
Insulin / blood
Male
Obesity / metabolism,  pathology,  therapy*
Random Allocation
Chemical
Reg. No./Substance:
0/Catecholamines; 0/Fatty Acids, Nonesterified; 11061-68-0/Insulin; 56-81-5/Glycerol

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


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