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Assisted living residents who have sleep disturbances are at great risk of developing cognitive impairments. The identification of factors that increase sleep problems in this population is the first step towards improving sleep disorders and reducing and/or delaying the occurrence of cognitive impairments in this population. Physical activity has been proposed to improve sleep quality in older individuals, but there is currently no scientific evidence of how sleep mediates the relationship between physical activity and cognition in assisted living residents. This is a cross-sectional study that investigates the relationship between sleep quality, functional/physical capacity, and cognitive performance. Participants will be recruited through a non-probabilistic sampling method (convenience) as this is a feasibility study that aims to identify, for the first time, sleep disorders in assisted living residents using objective measures of sleep. Sleep quality will be measured with polysomnography, actigraphy, and questionnaire. Functional and physical capacity will be assessed through walking tasks and actigraphy. Cognitive tasks will be used to assess memory. This study will bring new insights into the factors that affect the quality of life and sleep in assisted living residents. The evidence-based knowledge acquired on-site will be translated and shared with the local and global scientific community to raise awareness of the factors that contribute to increasing institutionalization and dependent living. Results obtained from objective and subjective measures of sleep will be of great importance to develop specialized clinical expertise and behavioral interventions that will meet residents' needs.
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Specific Objectives and Hypotheses:
To test the feasibility of using polysomnography to identify the severity of sleep disorders in assisted living residents.
The implementation of objective measures of sleep in assisted living residents is practical and provides accurate information on sleep architecture parameters.
To investigate the association between functional capacity and physical activity and sleep quality in assisted living residents using functional tests and actigraphy, respectively.
There is a positive association between functional capacity and sleep quality and physical activity will improve sleep quality in the efficiency and duration domains.
To investigate the association between sleep quality, measured through actigraphy, and cognitive performance, specifically in the memory domain, in assisted living residents.
There is a positive association between sleep quality, especially sleep efficiency, and cognitive performance.
To compare the sleep quality (measured with polysomnography, actigraphy, and questionnaire) in assisted living residents with older individuals of the same age and cognitive performance (Montreal Cognitive Assessment; MoCA score > 26) who live independently.
Sleep quality will be lower in assisted living residents in comparison with older individuals who live independently and the use of various methods to assess sleep quality will provide a better estimation of the differences in sleep quality between these populations.
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150 participants in 2 patient groups
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Marc J Poulin, PhD; Renata L Kruger, PhD
Data sourced from clinicaltrials.gov
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