Resistance Training and Executive Functions A 12-Month Randomized Controlled Trial
Resistance Training and Executive Functions A 12-Month Randomized Controlled Trial
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DOI：
10.1001/archinternmed.2009.494
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发表时间：
2010-01-25
影响因子：
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通讯作者：
Handy, Todd C.
中科院分区：
文献类型：
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作者：
Liu-Ambrose, Teresa;Nagamatsu, Lindsay S.;Handy, Todd C.
背景：老年人的认知能力下降是一个紧迫的医疗保健问题。特定的运动训练可以对抗认知能力下降。我们比较了每周一次和每周两次的阻力训练与每周两次的平衡和张力训练对老年女性执行认知功能表现的影响。在这项单盲随机试验中，155名居住在温哥华的65至75岁的社区居住妇女被随机分配到每周一次（n = 54）或每周两次（n = 52）阻力训练或每周两次的平衡和张力训练（对照组）（n = 49）。主要结果测量是Stroop测试的表现，Stroop测试是选择性注意和冲突解决的执行认知测试。执行认知功能的次要结果包括通过连线测试（A部分和B部分）测量的设置转移以及通过言语数字跨度向前和向后测试评估的工作记忆。步态速度，肌肉功能，和全脑容量也是次要的结局measurement.Results：两个阻力训练组显着提高他们的表现Stroop测试与那些在平衡和色调组（P < .03）。每周一次和每周两次阻力训练组的任务表现分别提高了12.6%和10.9%;平衡和张力组下降了0.5%。增强的选择性注意力和冲突解决能力与步态速度的增加显著相关。在研究结束时，与平衡和张力组相比，两个阻力训练组的全脑体积都有所减少（P
Background: Cognitive decline among seniors is a pressing health care issue. Specific exercise training may combat cognitive decline. We compared the effect of once-weekly and twice-weekly resistance training with that of twice-weekly balance and tone exercise training on the performance of executive cognitive functions in senior women.Methods: In this single-blinded randomized trial, 155 community-dwelling women aged 65 to 75 years living in Vancouver were randomly allocated to once-weekly (n = 54) or twice-weekly (n = 52) resistance training or twice-weekly balance and tone training (control group) (n = 49). The primary outcome measure was performance on the Stroop test, an executive cognitive test of selective attention and conflict resolution. Secondary outcomes of executive cognitive functions included set shifting as measured by the Trail Making Tests (parts A and B) and working memory as assessed by verbal digit span forward and backward tests. Gait speed, muscular function, and whole-brain volume were also secondary outcome measures.Results: Both resistance training groups significantly improved their performance on the Stroop test compared with those in the balance and tone group (P < .03). Task performance improved by 12.6% and 10.9% in the once-weekly and twice-weekly resistance training groups, respectively; it deteriorated by 0.5% in the balance and tone group. Enhanced selective attention and conflict resolution was significantly associated with increased gait speed. Both resistance training groups demonstrated reductions in whole-brain volume compared with the balance and tone group at the end of the study (P