Cadore E L, Lhullier F L R, Pinto R S, Albertons C L, Pinto S, Tartaruga M P, Kruel L F M
Exercise Research Laboratory Physical Education School Federal University of Rio Grande do Sul Porto Alegre, Brazil.
J Sports Med Phys Fitness. 2013 Jun;53(3):255-60.
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.
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.
No correlations were found between steroid hormonal concentrations and the performance parameters investigated.
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.
血清合成代谢激素和神经活动减少导致的肌肉力量下降可能会影响老年男性有氧能力的降低。然而，关于老年受试者体内类固醇激素与肌肉力量以及耐力之间的关系，目前研究较少。本研究的目的是探讨老年男性血清类固醇激素、力量和有氧运动表现之间的可能关系。
对28名老年男性（65±4岁）进行了动态力量（一次重复最大值测试）、等长力量（最大自主收缩）和力量发展速率评估。在自行车测力计上进行递增运动方案时，测定峰值摄氧量和最大工作量。此外，采集血样以测定基础皮质醇、总睾酮和游离睾酮。
未发现类固醇激素浓度与所研究的性能参数之间存在相关性。
我们的结果表明，单次测量类固醇激素浓度与健康的南美老年男性的力量和耐力能力无关。
