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通过运动训练增加健身对单语和双语老年人语言理解的影响:随机对照试验
Eunice G Fernandes1, Sindre H Fosstveit2, Jack Feron3
1Department of Foreign Languages and Translation, University of Agder, Kristiansand, Norway.
概括
运动训练提高了老单语者语言理解速度,支持心肺健康 (CRF) 假设. 然而,双语者从运动中没有表现出理解的好处,有些人甚至会减慢速度.
科学领域:
- 认知神经科学 认知神经科学
- 运动生理学 运动生理学
- 衰老研究研究 衰老研究
背景情况:
- 与年龄相关的认知能力下降是一个问题,心肺呼吸能力 (CRF) 被提出作为对策.
- 以前的研究将CRF与注意力和处理速度等认知功能联系起来,一项横截面研究表明与语言产生有关.
研究的目的:
- 为了确定运动训练是否能提高健康老年人的语言理解.
- 调查是否双语老年人,由于更高的语言处理需求,体验比单语者更大的好处.
主要方法:
- 一个为期6个月的随机对照试验,涉及160名老年人 (80名单语者,80名双语者).
- 参与者被分配到运动训练组或被动对照组.
- 在干预之前和之后测量了心肺呼吸能力 (VO2峰值) 和口语监测反应时间 (语言理解).
主要成果:
- 练习训练显著提高了老单语者语言理解速度,通过增加VO2峰值进行调解,支持CRF假设.
- 练习并没有提高双语者 (L1或L2) 的语言理解,尽管VO2峰值有所改善.
- 两组双语者在干预期后表现出更慢的理解能力.
结论:
- 练习训练在较老的单语者中因果性地提高了语言理解速度,加强了CRF假设.
- 双语可能会缓解运动的认知益处,在本研究中观察到对理解速度的潜在负面影响.
- 需要进一步的研究来了解双语,运动和衰老中的认知功能之间的复杂相互作用.
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