Cognitive Status and Physical Function in Older African Americans
Cognitive Status and Physical Function in Older African Americans
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DOI：
10.1111/j.1532-5415.2008.01938.x
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发表时间：
2008-11-01
影响因子：
6.3
通讯作者：
Saxton, Judith
中科院分区：
文献类型：
--
作者：
Nieto, Maria L.;Albert, Steven M.;Saxton, Judith
目的探讨两种社区环境下非洲裔美国老年人整体认知、三个特定认知领域与下肢功能的关系。横断面study.Community。来自两个社区的96名60岁及以上的AA男女参加了促进少数民族参与（BMI）研究，这是一项以社区为基础的队列研究，旨在提高老年低收入AA的研究参与度。使用短时物理性能电池评分来评估物理性能，该评分由三个定时测试组成：4米步行任务、静态平衡评估和椅子站立测试。采用buske记忆障碍筛查（MIS）和迷你精神状态检查分别评估整体记忆和整体认知。对于特定领域的表现，使用基于计算机的轻度认知障碍评估开发了三个z分数复合分数（注意力，言语记忆和执行功能）。除言语记忆外，所有认知领域都是下肢功能的显著预测因子。在调整后的模型中，执行功能和MIS是下肢功能的最佳预测因子。执行功能较差的参与者下肢功能较差的可能性是其四倍多（优势比=4.96,95%置信区间=1.07-23.0）。整体记忆和执行功能是社区AA成年人下肢功能的最佳预测因子。下肢功能缺陷可能与多方面的高级执行功能控制过程有关。
To investigate the relationship between global cognition, three specific domains of cognition, and lower extremity function in community-dwelling elderly African Americans (AAs) from two community settings.Cross-sectional study.Community.Ninety-six AA men and women aged 60 and older from two community settings, enrolled in the Boosting Minority Involvement (BMI) study, a community-based cohort study designed to increase research participation of older low-income AAs.Physical performance was assessed using Short Physical Performance Battery score, which is composed of three timed tests: a 4-m walking task, static balance assessment, and a chair stand test. The Bushke Memory Impairment Screen (MIS) and Mini-Mental State Examination were used to assess global memory and global cognition, respectively. For domain-specific performance, three z-score composite scores (attention, verbal memory, and executive function) were developed using the Computer-based Assessment of Mild Cognitive Impairment.All domains of cognition were significant predictors of lower extremity function except for verbal memory. Executive function and MIS were the best predictors of lower extremity function in adjusted models. Participants with poor executive function were more than four times as likely to have poorer lower extremity function (odds ratio=4.96, 95% confidence interval=1.07-23.0).Global memory and executive function were the best predictors of lower extremity function in a sample of community-dwelling AA adults. Deficits in lower extremity function may depend on multifaceted higher executive function control processes.