Usha Dhakal, Sara J McLaughlin, Seonjin Kim, Jonathon M Vivoda, Amy Restorick Roberts, J Scott Brown
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引用次数: 0
摘要
目前关于身体活动和社会参与对轻度认知障碍（MCI）老年人认知功能影响的证据尚不充分。根据认知储备理论，我们使用线性混合模型，利用来自健康与退休研究（n = 1462）的16年数据，研究身体活动和社会参与对MCI老年人认知功能的影响。基线时的平均认知得分（即时和延迟单词回忆总和，连续七减法测试，倒数，范围：0-27）为9.6分，平均得分每年下降0.14分。在控制协变量的情况下，体育活动和社会参与每增加一个单位，时间对认知功能的影响分别降低0.01 （β = 0.007, p < 0.0001）和0.03 （β = 0.029, p = 0.04）点，这种小影响会随着时间的推移而累积。研究结果表明，更多的体育活动和社会参与为经历轻度认知障碍的老年人提供了认知保护。
It's Not Too Late: Physical and Social Activity Slow Cognitive Decline in Those Living With Mild Cognitive Impairment.
Current evidence concerning the effect of physical activity and social engagement on cognitive functioning in older adults with mild cognitive impairment (MCI) is underdeveloped. Drawing upon cognitive reserve theory, we used linear mixed models to investigate the impact of physical activity and social engagement on cognitive functioning in older adults living with MCI utilizing 16 years of data from the Health and Retirement Study (n = 1462). The average cognitive score (sum of immediate and delayed word recall, serial seven subtraction test, counting backwards, range: 0-27) at baseline was 9.6, with the average score decreasing by 0.14 points each year. Controlling for covariates, each unit increase in physical activity and social engagement, respectively, reduced the effect of time on cognitive functioning by 0.01 (β = 0.007, p < .0001) and 0.03 (β = 0.029, p = .04) points, small effects that accumulate over time. Findings suggest that greater physical activity and social engagement offer cognitive protection among older adults experiencing MCI.
期刊介绍：
The Journal of Applied Gerontology (JAG) is the official journal of the Southern Gerontological Society. It features articles that focus on research applications intended to improve the quality of life of older persons or to enhance our understanding of age-related issues that will eventually lead to such outcomes. We construe application broadly and encourage contributions across a range of applications toward those foci, including interventions, methodology, policy, and theory. Manuscripts from all disciplines represented in gerontology are welcome. Because the circulation and intended audience of JAG is global, contributions from international authors are encouraged.
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