| Effect of dietary restriction and/or exercise on 23-h metabolic rate and body composition in female rats. | |
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MedLine Citation:
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PMID: 1757316 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study examined the effects of three levels of dietary intake [ad libitum fed (AL), moderately severe (MSR), and severe restriction (SR)] and two levels of exercise [cage confinement (CC) and exercise training (E)] on 23-h resting metabolic rate (RMR) and body composition in 47 female Sprague-Dawley rats. At the end of the 9-wk study, the MSR and SR groups weighed approximately 81 and 61%, respectively, of the AL-CC group. RMR was depressed for the MSR and SR groups compared with the AL-CC group. This was true whether expressed on an absolute (ml/min) or relative (ml.min-1.kg-0.75) basis. On a relative basis, which accounts for changes caused by weight loss alone, the RMR decreased by approximately 12 and 19%, respectively, for the MSR and SR groups compared with the AL-CC group. Although E resulted in significant differences in fat mass, percent fat, percent water, and heart mass between the AL groups, there were no significant differences between E and CC groups at either the MSR or SR level of dietary intake for any of the variables measured (i.e., body composition, muscle mass, RMR). Thus E does not appear to affect the composition of lost weight or RMR during diet-induced weight loss for female rats of normal weight. |
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Authors:
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D L Ballor |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of applied physiology (Bethesda, Md. : 1985) Volume: 71 ISSN: 8750-7587 ISO Abbreviation: J. Appl. Physiol. Publication Date: 1991 Sep |
Date Detail:
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Created Date: 1992-01-31 Completed Date: 1992-01-31 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8502536 Medline TA: J Appl Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 801-6 Citation Subset: IM; S |
Affiliation:
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Department of Human Development Studies, University of Vermont, Burlington 05405-0117. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Body Composition / physiology* Body Water / physiology Diet* Female Heart / anatomy & histology Lipid Metabolism Muscles / anatomy & histology, metabolism, physiology Organ Size / physiology Oxygen Consumption / physiology Physical Conditioning, Animal* Proteins / metabolism Rats Rats, Inbred Strains |
| Grant Support | |
ID/Acronym/Agency:
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AM-19944/AM/NIADDK NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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