Effects of Short-Term Resistance Training on Muscle Strength and Morphology in the Elderly
作者: David E.T. O’NeillRobert E. ThayerAlbert W. TaylorTomasz M. DzialoszynskiEarl G. Noble
刊名: Journal of Aging and Physical Activity, 2000, Vol.8 (4), pp.312-324
来源数据库: Human Kinetics
关键词: Fiber typeFiber cross-sectional areaOne-legged training
原始语种摘要: Ten moderately active participants (8 women, 2 men; mean age 66.3 ± 1.2 years), engaged in 8 weeks of isotonic knee-extensor resistance training. Afterward, peak torque output (180°/s) and mean power increased 30.8% and 27.2%, respectively, in the experimental limb (EL). A moderate, nonsignificant cross-over training effect was observed in the contralateral untrained limb (CL) for the same measures. Whereas mean fiber cross-sectional area (CSA) was unaltered in the CL by training. Fiber Types I and lib in the EL displayed increased CSA. However, mean CSAs for all fiber types in the trained EL were no larger ( p > .05) than those observed in the CL before or after training. There were no significant changes in muscle-fiber-type composition, the proportion of Type I myosin heavy chain, or...

  • training 培养
  • legged 有腿的
  • cross 十字
  • significant 有效的
  • trained 受过训练的
  • moderately 适度地
  • minimal 最小的
  • observed 观察到的
  • parameters 参数
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