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Influence of resistance exercise on the effects of agingupon the rat myocardium
Gonçalves, Leandro; Gama, Eliane Florêncio; Maifrino, Laura Beatriz Mesiano; N, Mor; Souza, Romeu Rodrigues de.
  • Gonçalves, Leandro; Faculdades Carlos Drummond de Andrade. Departamento de Educação Física. São Paulo. BR
  • Gama, Eliane Florêncio; Universidade São Judas Tadeu. Departamento de Educação Física. Laboratório do Movimento Humano. São Paulo. BR
  • Maifrino, Laura Beatriz Mesiano; Universidade São Judas Tadeu. Departamento de Educação Física. Laboratório do Movimento Humano. São Paulo. BR
  • N, Mor; Universidade São Judas Tadeu. Deparamento de Educação Física. São Paulo. BR
  • Souza, Romeu Rodrigues de; Universidade São Judas Tadeu. Departamento de Educação Física. Laboratório do Movimento Humano. São Paulo. BR
Braz. j. morphol. sci ; 29(2): 104-107, apr.-jun. 2012. ilus, graf
Article in English | 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.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Aging / Exercise / Myocytes, Cardiac / Heart Ventricles Limits: Animals Language: English Journal: Braz. j. morphol. sci Journal subject: Anatomy Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Faculdades Carlos Drummond de Andrade/BR / Universidade São Judas Tadeu/BR

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Full text: Available Index: LILACS (Americas) Main subject: Aging / Exercise / Myocytes, Cardiac / Heart Ventricles Limits: Animals Language: English Journal: Braz. j. morphol. sci Journal subject: Anatomy Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Faculdades Carlos Drummond de Andrade/BR / Universidade São Judas Tadeu/BR