休时间的体力活动减轻了PM2.5和PM2.5成分暴露的认知效应:来自全国纵向研究的证据
Jianxiu Liu1, Ruidong Liu2, Yao Zhang3
1Vanke School of Public Health, Tsinghua University, Beijing 100084, China; Division of Sports Science and Physical Education, Tsinghua University, Beijing 100084, China.
Environment international
|August 20, 2023
概括
身体活动 (PA) 即使在暴露于细颗粒物 (PM2.5) 的情况下也有利于认知,尽管污染会减轻这些影响. 仍然建议参与PA以减轻PM2.5的风险.
科学领域:
- 环境健康 环境健康
- 神经科学是一个神经科学.
- 公共卫生 公共卫生
背景情况:
- 细颗粒物 (PM2.5) 暴露与认知障碍有关.
- 众所周知,身体活动 (PA) 可以改善认知功能.
- 暴露于PM2.5和PA对认知的综合影响尚不清楚.
研究的目的:
- 研究PM2.5暴露和休时间PA对认知功能的个人和联合影响.
- 确定影响认知和与PA相互作用的特定PM2.5组件.
- 为了确定PA是否对认知有益,即使在PM2.5暴露的条件下.
主要方法:
- 利用来自中国家庭小组研究 (CFPS) (2010-2018) 的纵向数据.
- 评估认知表现和休时间的PA使用验证的问卷.
- 使用机器学习模型估计的PM2.5暴露和使用混合效应和差异模型分析的数据.
主要成果:
- 增加的PM2.5暴露与认知得分的下降有关,碳黑 (BC) 显示出最显著的负面影响.
- 增加休时间的PA (频率和时间) 与认知得分的提高有关.
- 在高PM2.5暴露下,PA的益处减弱,但仍存在,这表明其持续的保护作用.
结论:
- 休时间的PA甚至在暴露于PM2.5的情况下也提供认知益处,尽管益处减少了.
- 黑碳 (BC) 是一个重要的认知危害,与PA相互作用.
- 促进PA是一种可行的策略,可以减轻PM2.5暴露的不良认知影响.
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