Sedentary Time, Physical Activity, Fitness, and Physical Function in Older Adults: What Best Predicts Sleep Quality?

Sedentary Time, Physical Activity, Fitness, and Physical Function in Older Adults: What Best Predicts Sleep Quality? J Aging Phys Act. 2019 Jan 24;:1-25 Authors: Ramos V, Carraça EV, Paiva T, Baptista F Abstract The aim of this study was to identify the best predictor of sleep quality among physical behavior or capacity related variables namely, physical activity, sedentary time, fitness, and physical function (activities of daily living (ADL)) of independent elders using a representative sample of Portuguese aged 65+ (n = 437). Sleep quality and ADL were evaluated by a questionnaire, sedentary time and physical activity through accelerometry, and physical fitness by means of the Senior Fitness Test. The logistic regression analysis revealed that ADL measured by the Composite Physical Function (CPF) was the only explanatory variable discriminating between poor and good sleep quality. Receiver Operating Characteristic analysis showed that the best trade-off between sensitivity and specificity to discriminate old people with poor and good sleep quality was 20 points in the CPF (sensitivity=57.9%; specificity=60.9%; AUC=0.600, 95%CI: 0.536-0.665, p=0.003). Better physical function seems to be associated with better sleep quality in independent elders. PMID: 30676203 [PubMed - as supplied by publisher]
Source: Journal of Aging and Physical Activity - Category: Geriatrics Tags: J Aging Phys Act Source Type: research