Int J Sports Med 2012; 33(07): 550-554
DOI: 10.1055/s-0032-1304646
Training & Testing
© Georg Thieme Verlag KG Stuttgart · New York

Resistance Training and Glycogen Content in Ovariectomized Rats

J. Prestes
1  Graduation program on Physical Education, Catholic University of Brasilia, Brasilia, Brazil
,
R. D. Leite
2  Biosciences program, State University of Rio de Janeiro, Brazil
,
G. B. Pereira
3  Department of Physiological Sciences, Federal University of São Carlos, São Carlos, Brazil
,
G. E. Shiguemoto
3  Department of Physiological Sciences, Federal University of São Carlos, São Carlos, Brazil
,
C. F. Bernardes
4  Catholic University of Campinas and Veris Faculties/IBMEC Educational Group, Campinas, Brazil
,
R. Y. Asano
1  Graduation program on Physical Education, Catholic University of Brasilia, Brasilia, Brazil
,
M. M. Sales
1  Graduation program on Physical Education, Catholic University of Brasilia, Brasilia, Brazil
,
J. Bartholomeu Neto
5  Graduation Program on Physical Education, UNIRG, Gurupi, Brazil
,
S.E. A. Perez
3  Department of Physiological Sciences, Federal University of São Carlos, São Carlos, Brazil
› Author Affiliations
Further Information

Publication History



accepted after revision 24 January 2012

Publication Date:
12 April 2012 (online)

Abstract

The aim of the present study was to investigate the effects of resistance training on glycogen content and muscle cross-sectional area (CSA) in ovariectomized rats. Wistar rats were divided into: sedentary; ovariectomized sedentary; resistance trained; and ovariectomized resistance trained. In the 12-week resistance training, the animals climbed a 1.1 m vertical ladder, 3 days per week, with 4–8 climbs. Cardiac, liver and muscle glycogen content was determined. After the 12-week resistance training period there was a higher hepatic and muscle glycogen content in the resistance training group compared with the other groups (p<0.01). CSA was higher in soleus for the resistance trained, ovariectomized resistance trained and sedentary compared with ovariectomized sedentary (p<0.05). Ovariectomy attenuated the increase in liver and muscle glycogen content, while soleus muscle cross-sectional area increased with resistance training, even in ovariectomized rats. Resistance training could be an important exercise to increase muscle function in situations of reduced estrogen and progesterone.