Journal
JOURNAL OF THE AMERICAN MEDICAL DIRECTORS ASSOCIATION
Volume 18, Issue 5, Pages 396-401Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jamda.2016.10.016
Keywords
Sundown syndrome; sleep quality; Alzheimer disease; walking
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Purposes: Sundown syndrome and sleep disturbances cause people with Alzheimer disease (PAD) and caregivers suffering. Studies have indicated that physical exercise could have a positive impact on sundown syndrome, yet no research has ever explored the relationship between walking and sundown syndrome. The aims of this study were to examine the relationship between sundown syndrome and sleep quality, and determine whether the severity of dementia, sleep quality, and weekly duration of walking influenced sundown syndrome, and to assess differences in sundown syndrome and sleep quality in relation to the accompanying walker and weekly duration of walking among people with Alzheimer disease living in the community. Design: A cross-sectional observation study was conducted. Methods: A total 184 participants were recruited from dementia outpatient clinics of several hospitals and long-term care resource management centers in southern Taiwan. The Chinese version of the Cohen-Mansfield Agitation Inventory, Community form was used to assess sundown syndrome, and the Chinese version of the Pittsburgh Sleep Quality Index was used to measure sleep quality. Pearson correlation, multiple regression, and 1-way analysis of variance were performed for data analysis. Results: The results indicated that sundown syndrome was significantly correlated with sleep quality (r = 0.374), whereas severity of dementia, sleep quality, and weekly duration of walking were influencing factors of sundown syndrome and accounted for a total of 24.8% of the variance (adjusted R-2 = 0.222, F-6,F-177 = 9.709). In addition, PAD who walked with relatives showed less sundown syndrome (F-3,F-180 = 4.435, P = .005) and better sleep quality (F-3,F-180 = 3.565, P = .015) compared with those walking with nonrelatives. Also, longer walking time led to less sundown syndrome (F-4,F-179 = 4.351, P = .002) and better sleep quality (F-4,F-179 = 3.592, P = .008). Conclusions: Advanced dementia, poor sleep quality, and shorter weekly duration of walking were the influencing factors of sundown syndrome. Walking with relatives and regular longer walking time could improve sleep quality and alleviate sundown syndrome. It is suggested that a well-designed walking intervention considering these factors could be an appropriate strategy to manage sundown syndrome and sleep quality for PAD and their caregivers. (C) 2016 AMDA - The Society for Post-Acute and Long-Term Care Medicine.
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