Influence of resistance exercise on the effects of agingupon the rat myocardium
Braz. j. morphol. sci
;
29(2): 104-107, apr.-jun. 2012. ilus, graf
Artículo
en Inglés
| LILACS
| ID: lil-665204
ABSTRACT
Maintaining the proportions of the myocytes, interstitium and collagen, is fundamental for myocardialfunction, This study examined the changes produced by aging in the densities of myocites, interstitiumand collagen of the left ventricular myocardium male Wistar rats and to see whether resistance exercise mayinfluence these changes. Three groups of animals were used Control Group, sacrificed at 13 months of age,Sedentary Group, sacrificed at 16 months of age, and Trained Group, sacrificed at 16 months of age. Thevolume densities (Vv) of cardiac myocytes, interstitium, and collagen were determined in histological sectionsof the left ventricular wall. It was concluded that aging decreased the area occupied by myocytes with anincrease in the area occupied by the interstitium and collagen. Resistance exercise promoted the reversal ofcollagen accumulation, not influencing the effects of aging in the space occupied by myocytes and interstitiumin the myocardium.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Envejecimiento
/
Ejercicio Físico
/
Miocitos Cardíacos
/
Ventrículos Cardíacos
Límite:
Animales
Idioma:
Inglés
Revista:
Braz. j. morphol. sci
Asunto de la revista:
Anatomía
Año:
2012
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Faculdades Carlos Drummond de Andrade/BR
/
Universidade São Judas Tadeu/BR
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