alexa Detraining Leads to Weight Gain and a Decrease in Hepatic Glycogen after 8 Weeks of Training
ISSN: 2167-0889

Journal of Liver
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Research Article

Detraining Leads to Weight Gain and a Decrease in Hepatic Glycogen after 8 Weeks of Training

Leandro Fernandes1, Lisandro Lungato1, Tassiane Zaros2, Rodolfo Marinho3, Vanessa Cavalcante-Silva4, Marcia R Nagaoka2
and Vânia D’Almeida1*
1 Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil
2 Departamento de Biociências, Universidade Federal de São Paulo, Santos, Brazil
3 Pós-Graduação em Ciências da Motricidade, Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, Brazil
4 Departamento de Pediatria, Universidade Federal de São Paulo, São Paulo, Brazil
Corresponding Author : Vânia D’Almeida
Department of Psychobiology
Universidade Federal de Sao Paulo
Rua Napoleao de Barros, 925, 3rd floor, São Paulo
SP 04024-002 Brazil
Tel: + 55112149-0155 ext.: 283
Fax: + 55115572-5092
E-mail: [email protected]
Received April 29, 2014; Accepted June 19, 2014; Published June 27, 2014
Citation: Fernandes L, Lungato L, Zaros T, Marinho R, Cavalcante-SIlva V, et al. (2014) Detraining Leads to Weight Gain and a Decrease in Hepatic Glycogen after 8 Weeks of Training. J Liver 3:159. doi:10.4172/2167-0889.1000159
Copyright: © 2014 Fernandes L, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Many studies have evaluated the effects of physical training on several metabolic parameters, but few studies have been conducted to evaluate the effects of detraining on these variables. Female mice were distributed into three experimental groups: sedentary controls (C-SED, not trained), trained controls (TR, trained for 10 weeks) and a detraining group (DT, animals detrained for 2 weeks after 8 weeks of training). The exercise protocol was performed by swimming applied for 60 min/day on 5 days/week. The DT group showed an increase of body weight in the 10th week when compared to the 8th week (after training cessation) and the TR group. The groups did not show differences in the plasma levels of corticosterone, glucose, total cholesterol or triglycerides. The DT group showed decreased glycogen content when compared to the TR group. No significant differences were found in the gene expression of glycogen synthase or glycogen phosphorylase or in hepatic glycogen content between CT and TR or DT group. We verified that after a training period of 8 weeks, the animals had an increase in body weight after two weeks of detraining. After two weeks of detraining, animals showed a decrease in liver glycogen content, without an altered fasting glucose concentration in their plasma.

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