公共卫生 公共卫生
Natan Feter1,2, Bruce Duncan3, David A Raichlen2
1Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 23, 2025
概括
久坐不动的行为 (SB) 背景对认知健康有影响. 精神上活跃的SB,就像工作屏幕时间一样,可能会保护认知,而休屏幕时间可能会增加衰退风险. 身体活动 (PA) 可能缓冲负面影响.
科学领域:
- 神经科学是一个神经科学.
- 公共卫生 公共卫生
- 老年学是一门学科.
背景情况:
- 久坐不动的行为 (SB) 与认知能力下降有关.
- 精神上活跃的SB和体力活动 (PA) 可能提供认知保护.
- 了解特定环境的SB和PA对认知的影响对于老龄化人口至关重要.
研究的目的:
- 调查特定环境的SB (工作与休屏幕时间) 和PA与认知衰退之间的关联.
- 为了检查不同类型的SB和PA水平在4年内如何影响认知功能.
- 为了确定PA是否减轻了中年和老年人SB的负面认知影响.
主要方法:
- 分析了来自Stude de Saude do Adulto (ELSA-巴西) 长度研究 (N=5,795) 的数据.
- 使用国际体力活动问卷 (IPAQ) 评估休PA.
- 基于屏幕时间背景 (工作/学习与休) 和心理活动的SB分类.
- 在基线和4年随访时评估全球和特定领域的认知功能.
主要成果:
- 增加休时间的屏幕时间与更高的认知障碍风险和更快的记忆力下降相关.
- 增加的工作/学习屏幕时间与全球认知,记忆,语言和执行功能下降的速度较慢有关.
- 高水平的PA并没有显示出与高休时间或高工作时间的人群认知障碍风险较高的显著关联.
结论:
- SB和认知衰退之间的关系取决于上下文.
- 精神上被动的SB,特别是休时间的屏幕时间,可能会对认知健康产生负面影响.
- 身体活动似乎可以减轻久坐不动行为对认知衰退的不良影响.
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