较低的体力活动改变了感知疲劳和执行功能之间的关联,但不是记忆:肌肉,运动和衰老的研究 (SOMMA)
medRxiv : the preprint server for health sciences
|November 21, 2023
概括
较高的感知疲劳与较差的执行功能有关,特别是在不太活跃的个体中. 针对疲劳性的干预措施可能会改善老年人的认知功能.
科学领域:
- 老年学是指老年学的学科.
- 认知神经科学 认知神经科学
- 运动生理学 运动生理学
背景情况:
- 感知疲劳,衡量对疲劳的脆弱性,越来越多地被认为与认知功能有潜在的关联.
- 了解这种关系对于开发针对老龄化人口的有针对性的干预措施至关重要.
研究的目的:
- 量化感知疲劳和多个认知领域之间的关联.
- 调查身体活动 (PA) 在这种关系中的适度作用.
主要方法:
- 从SOMMA研究中对873名老年人的横截面分析.
- 匹兹堡疲劳度表 (PFS) 评估了感知疲劳度 (身体和精神子表).
- 使用数字符号替换测试 (DSST),蒙特利尔认知评估 (MoCA) 和加利福尼亚口语学习测试 (CVLT) 评估认知功能.
- 使用线性回归和效果修改分析,调整共变量和加速度计测量的PA.
主要成果:
- 较大的感知疲劳与较差的执行功能 (DSST分数) 有关.
- 每增加4个点的PFS物理和3个点的PFS心理的增加与大约一个更少正确的DSST项目相关联.
- 身体活动量和强度改变了心理疲劳和执行功能之间的关联,在不太活跃的个体中观察到的最强的联系.
- 在感知疲劳和一般认知功能 (MoCA) 或记忆 (CVLT) 之间没有发现显著的关联.
结论:
- 增加感知疲劳,特别是精神疲劳,与老年人的执行功能下降有关.
- 身体活动水平在调节这种关联方面发挥着重要作用.
- 旨在减少感知疲劳的干预措施可能对认知健康有好处,特别是在久坐的人群中.
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