PURPOSE: To evaluate the effects of intensity of exercise on insulin resistance and the expression of inflammatory proteins in the skeletal muscle of diet-induced obese (DIO) rats after a single bout of exercise. METHODS: In the first exercise protocol, the rats swam for two 3-h bouts, separated by a 45-min rest period (with 6 h in duration--O + EXE), and in the second protocol, the rats were exercised with 45 min of swimming at 70% of the maximal lactate steady state--SS (DIO + MLSS). RESULTS: Our data demonstrated that both protocols of exercise increased insulin sensitivity and increased insulin-stimulated tyrosine phosphorylation of insulin receptor and insulin receptor substrate 1 and serine phosphorylation of protein kinase B in the muscle of DIO rats by the same magnitude. In parallel, both exercise protocols also reduced protein tyrosine phosphatase 1B activity and insulin receptor substrate 1 serine phosphorylation, with concomitant reduction in c-jun N-terminal kinase and IJB kinase activities in the muscle of DIO rats in a similar fashion. CONCLUSIONS: Thus, our data demonstrate that either exercise protocols with low intensity and high volume or exercise with moderate intensity and low volume represents different strategies to restore insulin sensitivity with the same efficacy.
PURPOSE: To evaluate the effects of intensity of exercise on insulin resistance and the expression of inflammatory proteins in the skeletal muscle of diet-induced obese (DIO) rats after a single bout of exercise. METHODS: In the first exercise protocol, the rats swam for two 3-h bouts, separated by a 45-min rest period (with 6 h in duration--O + EXE), and in the second protocol, the rats were exercised with 45 min of swimming at 70% of the maximal lactate steady state--SS (DIO + MLSS). RESULTS: Our data demonstrated that both protocols of exercise increased insulin sensitivity and increased insulin-stimulated tyrosine phosphorylation of insulin receptor and insulin receptor substrate 1 and serine phosphorylation of protein kinase B in the muscle of DIO rats by the same magnitude. In parallel, both exercise protocols also reduced protein tyrosine phosphatase 1B activity and insulin receptor substrate 1serine phosphorylation, with concomitant reduction in c-jun N-terminal kinase and IJB kinase activities in the muscle of DIO rats in a similar fashion. CONCLUSIONS: Thus, our data demonstrate that either exercise protocols with low intensity and high volume or exercise with moderate intensity and low volume represents different strategies to restore insulin sensitivity with the same efficacy.
Authors: Kristian Karstoft; Kamilla Winding; Sine H Knudsen; Noemi G James; Maria M Scheel; Jesper Olesen; Jens J Holst; Bente K Pedersen; Thomas P J Solomon Journal: Diabetologia Date: 2014-08-07 Impact factor: 10.122
Authors: Alisson L da Rocha; Bruno C Pereira; Giovana R Teixeira; Ana P Pinto; Fabiani G Frantz; Lucila L K Elias; Fábio S Lira; José R Pauli; Dennys E Cintra; Eduardo R Ropelle; Leandro P de Moura; Rania A Mekary; Ellen C de Freitas; Adelino S R da Silva Journal: Front Immunol Date: 2017-10-25 Impact factor: 7.561
Authors: Leandro Pereira de Moura; Amanda Christine da Silva Sponton; Michel Barbosa de Araújo; Rodrigo Augusto Dalia; José Rodrigo Pauli; Maria Alice Rostom de Mello Journal: Lipids Health Dis Date: 2013-03-06 Impact factor: 3.876
Authors: Bruno Cesar Pereira; José Rodrigo Pauli; Lusânia Maria Greggi Antunes; Ellen Cristini de Freitas; Mara Ribeiro de Almeida; Vinícius de Paula Venâncio; Eduardo Rochete Ropelle; Claudio Teodoro de Souza; Dennys Esper Cintra; Marcelo Papoti; Adelino Sanchez Ramos da Silva Journal: BMC Physiol Date: 2013-10-08