Determinants of sleep quality in the healthy aged: the role of physical, psychological, circadian and naturalistic light variables

1835 28 67722 2 2406488 document 67722 lightbox.jpg image/png 1979674832126de99f900dd9ce45c6c9 MD5 40641 2020-10-06 03:14:31 https://vuir.vu.edu.au/1835/2/lightbox.jpg 1835 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en staffonly

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http://eprints.org/relation/isVersionOf https://vuir.vu.edu.au/id/dark_document/67715 http://eprints.org/relation/isVolatileVersionOf https://vuir.vu.edu.au/id/dark_document/67715 http://eprints.org/relation/issmallThumbnailVersionOf https://vuir.vu.edu.au/id/dark_document/67715 archive 293 disk0/00/00/18/35 2009-03-03 14:50:51 2021-08-27 07:42:15 2009-03-03 14:50:51 article show Hood Bernadette Hood, Bernadette Bruck Dorothy Bruck, Dorothy Kennedy Gerard Kennedy, Gerard Determinants of sleep quality in the healthy aged: the role of physical, psychological, circadian and naturalistic light variables pub 380000 FOR_2008_170100 Psychology ResPubID7890, ageing, sleep, naturalistic light, circadian rhythms, elderly Ageing is associated with a decrease in the quality of night-time sleep with 30% of aged persons experiencing chronic insomnia. Treatment of insomnia typically involves the use of hypnotic medications and these have been associated with a range of negative outcomes in this population cohort. The development of age-related insomnia has been linked, in part, to changes in the strength of the circadian regulation of sleep, these changes typically leading to increased fragmentation of the sleep–wake cycle. Management of insomnia may therefore be linked to strengthening of these regulatory control mechanisms. Previous research has indicated that both daily activity levels and ambient light exposure may act as zeitgebers to consolidate sleep– wakefulness cycles. The current study utilised a naturalistic design to explore the relationship between light, activity and night-time sleep quality amongst a sample of 33 healthy aged subjects. Findings demonstrated a signiWcant positive relationship between activity and sleep quality. Ambient light was also shown to have a signiWcant impact on night-time sleep though the study identiWed a critical exposure threshold of 3000 lux. Factor analysis demonstrated the independent contribution of these two variables to subsequent sleep quality. The Wndings of the current study identify the potential for the development of non-pharmacological treatment strategies for insomnia in aged people. 2004 published Oxford University Press 10.1093/ageing/afh051 http://dx.doi.org/10.1093/ageing/afh051 67715 2 2406476 dark_document 67715 Bruck Dorothy.pdf application/pdf 1a226366cb008aeab3dfdf18aca659f9 MD5 74736 2020-10-06 03:13:20 1835 1 1 application/pdf text Generic Permission Form en staffonly

Bruck Dorothy.pdf

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