轻度运动改善执行功能,增加老年人前额叶皮层的神经效率
Kyeongho Byun1,2, Kazuki Hyodo3,4, Kazuya Suwabe1,5
1Sport Neuroscience Division, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.
GeroScience
|June 15, 2023
概括
一个为期3个月的轻度炼计划改善了老年人的执行功能和神经效率. 这项研究强调了轻度体力活动对老年人群认知健康的好处.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 运动生理学 运动生理学
背景情况:
- 执行功能对于认知控制至关重要,可能会随着年龄的增长而下降.
- 正在探索轻度运动干预措施的潜力,以减轻与年龄相关的认知衰退.
- 了解衰老中认知变化背后的神经机制至关重要.
研究的目的:
- 为了研究为期3个月的轻度运动干预对健康中年和老年人执行功能的影响.
- 检查与运动干预相关的神经机制,特别是前额叶皮层激活和神经效率.
- 探索与年龄相关的轻度运动对执行功能和神经效率的反应差异.
主要方法:
- 一个随机对照试验,涉及81名健康的中年和老年人.
- 参与者被分配到轻度骑自行车运动组或对照组3个月.
- 使用Stroop色词任务 (CWST) 评估执行功能,以Stroop干扰 (SI) 相关的反应时间 (RT) 为主要结果.
- 在CWST期间,使用功能近红外光谱学 (fNIRS) 监测前额活化.
主要成果:
- 轻度运动干预显著降低了SI相关的RT,表明执行功能有所改善.
- 在SI相关的氧血红蛋白 (oxy-Hb) 变化或神经效率 (NE) 在前额叶皮层的得分没有显著的变化被观察到.
- 在老年子组 (≥68岁) 中,SI相关的RT显著下降,SI相关的NE分数在前额区域显著增加.
结论:
- 长期,非常轻强度的运动干预积极影响执行功能,特别是在老年人中.
- 在老年人中观察到的认知益处可能是由前额叶皮层神经效率的提高所介导的.
- 在老年人群中,轻度运动是提高认知功能和神经效率的可行策略.
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