Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh.
MRC/CSO Social and Public Health Sciences Unit, University of Glasgow.
Psychol Aging. 2018 Mar;33(2):288-296. doi: 10.1037/pag0000221.
Higher cognitive ability is associated with being more physically active. Much less is known about the associations between cognitive ability and sedentary behavior. Ours is the first study to examine whether historic and contemporaneous cognitive ability predicts objectively measured sedentary behavior in older age. Participants were drawn from 3 cohorts (Lothian Birth Cohort, 1936 [LBC1936] [n = 271]; and 2 West of Scotland Twenty-07 cohorts: 1950s [n = 310] and 1930s [n = 119]). Regression models were used to assess the associations between a range of cognitive tests measured at different points in the life course, with sedentary behavior in older age recorded over 7 days. Prior simple reaction time (RT) was significantly related to later sedentary time in the youngest, Twenty-07 1950s cohort (p = .04). The relationship was nonsignificant after controlling for long-standing illness or employment status, or after correcting for multiple comparisons in the initial model. None of the cognitive measures were related to sedentary behavior in either of the 2 older cohorts (LBC1936, Twenty-07 1930s). There was no association between any of the cognitive tests and the number of sit-to-stand transitions in any of the 3 cohorts. The meta-analytic estimates for the measures of simple and choice RT that were identical in all cohorts (n = 700) were also not significant. In conclusion, we found no evidence that objectively measured sedentary time in older adults is associated with measures of cognitive ability at different time points in life, including cognitive change from childhood to older age. (PsycINFO Database Record
更高的认知能力与更积极的身体活动有关。然而，认知能力与久坐行为之间的关联却知之甚少。我们的研究首次考察了历史和当代认知能力是否能预测老年人久坐行为的客观测量结果。参与者来自三个队列（爱丁堡大学 1936 年出生队列[LBC1936] [n = 271]；和两个苏格兰西部 2007 年队列：50 年代[n = 310]和 30 年代[n = 119]）。回归模型用于评估在整个生命过程中不同时间点测量的一系列认知测试与老年人久坐行为之间的关系，这些行为是通过 7 天的时间记录下来的。在最年轻的 2007 年 50 年代队列中，先前的简单反应时间（RT）与后期久坐时间显著相关（p =.04）。在控制了长期疾病或就业状况后，或者在初始模型中进行了多次比较校正后，这种关系不再显著。在两个较年长的队列（LBC1936，2007 年 30 年代）中，没有一项认知测量与久坐行为有关。在三个队列中，任何认知测试与坐立转换次数之间都没有关联。在所有队列中（n = 700），简单和选择 RT 测量的荟萃分析估计值也没有意义。总之，我们没有发现证据表明老年人的客观测量久坐时间与一生中不同时间点的认知能力测量结果有关，包括从儿童期到老年期的认知变化。
