Muscle quality and functionality in older women improve similarly with muscle power training using one or three sets
Muscle quality and functionality in older women improve similarly with muscle power training using one or three sets
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DOI：
10.1016/j.exger.2019.110745
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发表时间：
2019-12-01
影响因子：
3.9
通讯作者：
Pinto, Ronei S.
中科院分区：
文献类型：
--
作者：
Radaelli, Regis;Brusco, Clarissa M.;Pinto, Ronei S.
本研究比较了老年妇女进行1组或3组肌肉力量训练12周对肌肉质量(回声强度（MQ(EI)）和指数（MQ(index)）、肌肉力量相关结果和功能能力的影响。参与者被随机分为两组：1SET （n = 13）和3SET （n = 13）。在反动作跳跃时测量下肢肌力和垂直跳跃高度，单侧膝关节伸展时0-50和0-200 ms时最大扭矩发展率（MRTD）、肌电信号均方根（RMS）和股四头肌最大肌电激活率（RER），在训练前和训练后用计时起跳法评估两组的MQ（EI）、MQ（指数）（绝对肌力/MQ（EI）和MRTD/MQ(EI)）和功能。肌肉力量、垂直起跳高度、MQ（EI）、MQ（指数）和功能（p < 0.05）均有显著性升高
The present study compared the effects of 12 weeks of muscle power training performing one or three sets on muscle quality assessed by echo intensity (MQ(EI)) and index (MQ(index)), muscle power-related outcomes, and functional capacity in older women. Participants were randomly assigned into two groups: 1SET (n = 13) and 3SET (n = 13). Lower limb muscle power and vertical jump height were measured during a countermovement jump, maximal rate of torque development (MRTD), and root mean square (RMS) of electromyography signals and rate of rise (RER) of quadriceps maximal electromyography activation during unilateral knee extension at 0-50 and 0-200 ms, MQ(EI), MQ(index) (absolute muscle power/MQ(EI), and MRTD/MQ(EI)) and functionally in both groups using timed-up-and-go were evaluated before and after training. There were significant and similar (p < 0.05) increases in muscle power, vertical jump height, MQ(EI), MQ(index), and functionally (p