Document Detail

Forced and voluntary exercise counteracts insulin resistance in rats: The role of coping style.
MedLine Citation:
PMID:  22609426     Owner:  NLM     Status:  Publisher    
There are large individual differences in the success rates of exercise intervention programs aimed at the prevention and treatment of obesity-related disorders. In the present study, we tested the hypothesis that differences in coping style may impact the success rates of these intervention programs. We tested insulin responses before and after voluntary wheel running in both passive (insulin resistant) Roman Low Avoidance (RLA) and proactive (insulin sensitive) Roman High Avoidance (RHA) rats using intravenous glucose tolerance tests (IVGTTs). To control for a potential difference between voluntary and forced exercise, we also included RLA and RHA rats that were subjected to forced running. We found the following: 1) when given the opportunity to run voluntarily in a running wheel, passive RLA rats run more than proactively than RHA rats; 2) voluntary exercise leads to a normalization of insulin responses during an IVGTTs in RLA rats; and 3) there were no behavioral and physiological differences in efficacy between voluntary and forced running. We conclude that exercise, both forced and voluntary, is a successful lifestyle intervention for the treatment of hyperinsulinemia, especially in individuals with a passive coping style.
Gretha J Boersma; R Paulien Barf; Lambertus Benthem; Gertjan van Dijk; Anton J W Scheurink
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-15
Journal Detail:
Title:  Hormones and behavior     Volume:  -     ISSN:  1095-6867     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0217764     Medline TA:  Horm Behav     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Inc.
Department of Neuroendocrinology, University of Groningen, The Netherlands; Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, School of Medicine, USA.
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