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Randomized Controlled Trial
. 2011 Aug;59(8):1393-402.
doi: 10.1111/j.1532-5415.2011.03519.x. Epub 2011 Jul 28.

Increasing walking and bright light exposure to improve sleep in community-dwelling persons with Alzheimer's disease: results of a randomized, controlled trial

Susan M McCurry  1 , Kenneth C Pike, Michael V Vitiello, Rebecca G Logsdon, Eric B Larson, Linda Teri
Affiliations
Randomized Controlled Trial

Increasing walking and bright light exposure to improve sleep in community-dwelling persons with Alzheimer's disease: results of a randomized, controlled trial

Susan M McCurry et al. J Am Geriatr Soc. 2011 Aug.

Abstract

Objectives: To test the effects of walking, light exposure, and a combination intervention (walking, light, and sleep education) on the sleep of persons with Alzheimer's disease (AD).

Design: Randomized, controlled trial with blinded assessors.

Setting: Independent community living.

Participants: One hundred thirty-two people with AD and their in-home caregivers.

Interventions: Participants were randomly assigned to one of three active treatments (walking, light, combination treatment) or contact control and received three or six in-home visits.

Measurements: Primary outcomes were participant total wake time based on wrist actigraphy and caregiver ratings of participant sleep quality on the Sleep Disorders Inventory (SDI). Secondary sleep outcomes included additional actigraphic measurements of sleep percentage, number of awakenings, and total sleep time.

Results: Participants in walking (P=.05), light (P=.04), and combination treatment (P=.01) had significantly greater improvements in total wake time at posttest (effect size 0.51-0.63) than controls but no significant improvement on the SDI. Moderate effect size improvements in actigraphic sleep percentage were also observed in active treatment participants. There were no significant differences between the active treatment groups and no group differences for any sleep outcomes at 6 months. Participants with better adherence (4 d/wk) to walking and light exposure recommendations had significantly less total wake time (P=.006) and better sleep efficiency (P=.005) at posttest than those with poorer adherence.

Conclusion: Walking, light exposure, and their combination are potentially effective treatments for improving sleep in community-dwelling persons with AD, but consistent adherence to treatment recommendations is required.

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Figures

Figure 1
Figure 1
Flow of Participants Through the Trial
See this image and copyright information in PMC

References

    1. Gaugler JE, Edwards AB, Femia EE, et al. Predictors of institutionalization of cognitively impaired elders: Family help and the timing of placement. J Gerontol Psychol Sci. 2000;55B:P247–P255. - PubMed
    1. Hope T, Keene J, Gedling K, et al. Predictors of institutionalization for people with dementia living at home with a carer. Int J Geriatr Psychiatry. 1998;13:682–690. - PubMed
    1. Knopman DS, Kitto J, Deinard S, et al. Longitudinal study of death and institutionalization in patients with primary degenerative dementia. J Am Geriatr Soc. 1988;36:108–112. - PubMed
    1. McCurry SM, Logsdon RG, Teri L, et al. Sleep disturbances in caregivers of persons with dementia: Contributing factors and treatment implications. Sleep Med Rev. 2007;11:143–153. - PMC - PubMed
    1. Pollak CP, Perlick D. Sleep problems and institutionalization of the elderly. J Geriatr Psychiatry Neurol. 1991;4:204–210. - PubMed

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