Correlations between serum hormones, strength and endurance in healthy elderly South-American men.
J Sports Med Phys Fitness
; 53(3): 255-60, 2013 Jun.
Article
em En
| MEDLINE
| ID: mdl-23715249
ABSTRACT
AIM:
Declines in muscular strength resulting from reduced serum anabolic hormones and neural activity may influence the reduction in aerobic capacity in older men. However, there has been little investigation into the relationship between steroid hormones and muscular strength, as well as endurance capacity in elderly subjects. The purpose of this study was to investigate the possible relationship between serum steroid hormones, strength and aerobic performance in older men.METHODS:
Twenty-eight aged men (65±4 years) were evaluated in dynamic strength (one repetition maximum test), isometric strength (maximal voluntary contraction) and rate of force development. Peak oxygen uptake and maximal workload were determined during a ramp protocol on a cycle ergometer. In addition, blood samples were taken to determine basal cortisol, total and free testosterone.RESULTS:
No correlations were found between steroid hormonal concentrations and the performance parameters investigated.CONCLUSION:
Our results suggest that single measurements of steroids hormones concentrations are not related to the strength and endurance capacity of healthy South-American elderly men.
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Base de dados:
MEDLINE
Assunto principal:
Resistência Física
/
Testosterona
/
Hidrocortisona
/
Força Muscular
Limite:
Aged
/
Humans
/
Male
País como assunto:
America do sul
/
Brasil
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article