Calamia Matthew, De Vito Alyssa, Bernstein John P K, Weitzner Daniel S, Carmichael Owen T, Keller Jeffrey N
Department of Psychology.
Pennington Biomedical Research Center.
Neuropsychology. 2018 Nov;32(8):941-949. doi: 10.1037/neu0000487. Epub 2018 Aug 6.
To examine associations between pedometer-assessed daily steps and several domains of cognitive functioning in cognitive healthy older adults.
A total of 582 cognitively healthy older adults enrolled in a longitudinal aging study completed the Uniform Data Set (UDS) neuropsychological battery ( = 374) or the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS; = 208) and were asked to wear a pedometer for 1 week.
Bivariate correlations revealed associations between average daily steps and attention, executive functioning, language, and memory on one or both cognitive batteries. Multiple regression analyses controlling for demographic, health, and mobility variables demonstrated a significant relationship between average daily steps and the executive functioning composite of the UDS battery and average daily steps and the attention index of the RBANS battery. Both of these composites include measures of processing speed and, therefore, the most robust link between daily steps and cognition may be its association with processing speed.
Step counts as measured by a pedometer, a simple and inexpensive measure of daily physical activity, are robustly associated with aspects of cognition. As pedometer-based interventions have shown success in increasing daily physical activity in older adults, a greater number of future studies should consider measuring cognitive outcomes of these interventions. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
探讨计步器评估的每日步数与认知功能正常的老年人认知功能多个领域之间的关联。
共有582名参与纵向衰老研究的认知功能正常的老年人完成了统一数据集（UDS）神经心理测验组（n = 374）或可重复神经心理状态评估量表（RBANS；n = 208），并被要求佩戴计步器1周。
双变量相关性分析显示，在一种或两种认知测验组上，平均每日步数与注意力、执行功能、语言和记忆之间存在关联。控制人口统计学、健康和活动能力变量的多元回归分析表明，平均每日步数与UDS测验组的执行功能综合得分以及平均每日步数与RBANS测验组的注意力指数之间存在显著关系。这两个综合得分均包括处理速度的测量指标，因此，每日步数与认知之间最显著的联系可能是其与处理速度的关联。
计步器测量的步数是一种简单且廉价的日常身体活动测量方法，与认知方面密切相关。鉴于基于计步器的干预措施已成功增加了老年人的日常身体活动，未来应开展更多研究来考量这些干预措施的认知结果。（《心理学文摘数据库记录》（c）2018美国心理学会，保留所有权利）
