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01-07-2008 | Original Article

Cardiovascular adaptive responses in rats submitted to moderate resistance training

Authors: Rita de Cássia Cypriano Ervati Pinter, Alessandra Simão Padilha, Edilamar Menezes de Oliveira, Dalton Valentim Vassallo, Juliana Hott de Fúcio Lizardo

Published in: European Journal of Applied Physiology | Issue 5/2008

Abstract

The present study investigated the effects of 8 week of resistance training (RT) on hemodynamic and ventricular function on cardiac myosin ATPase activity, and on contractility of papillary muscles of rats. Groups: control (CO), electrically stimulated (ES), trained at 60% (TR 60%) and 75% of one repetition maximum (1RM) (TR 75%). Exercise protocol: 5 sets of 12 repetitions at 60 and 75% of 1RM, 5 times per week. The CO and ES groups had similar values for parameters analyzed (P > 0.05). Blood pressure (BP), heart rate (13%), left ventricle systolic pressure (LVSP 13%) decreased and cardiac myosin ATPase activity increased in the TR 75% group (90%, P < 0.05). The contractile performance of papillary muscles increased in trained rats (P < 0.05). Eight weeks of RT was associated with lowering of resting BP, heart rate and LVSP, improvements in contractility of the papillary muscle and an increase of cardiac myosin ATPase activity in rats.

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Title: Cardiovascular adaptive responses in rats submitted to moderate resistance training
Authors: Rita de Cássia Cypriano Ervati Pinter
Alessandra Simão Padilha
Edilamar Menezes de Oliveira
Dalton Valentim Vassallo
Juliana Hott de Fúcio Lizardo
Publication date: 01-07-2008
Publisher: Springer-Verlag
Published in: European Journal of Applied Physiology / Issue 5/2008
Print ISSN: 1439-6319
Electronic ISSN: 1439-6327
DOI: https://doi.org/10.1007/s00421-008-0761-3

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Cardiovascular adaptive responses in rats submitted to moderate resistance training

Abstract

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Abstract

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