Evaluation of waist-worn actigraphy monitors for the assessment of sleep in older adults with and without Alzheimer’s disease

Khou, Christina S.; B, Rendzia; Watts, Amber

doi:10.1177/2055668318777989

Cited by 8 publications

(10 citation statements)

References 41 publications

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“…Self-reported sleep parameters were not associated with actigraphy-measured sleep disruption (Factor 2). These results support the differences between actigraphy-measured and self-reported sleep parameters, which have been reported in studies by DiNapoli et al (2017) and Khou et al (2018). Thus, even among healthy older adults with intact cognitive function and no depression and insomnia, it was not possible to correctly estimate some aging-related sleep characteristics and there was difficulty obtaining correct assessments of these age-related sleep characteristics solely from either actigraphy or self-reported sleep questionnaires.…”

Section: Discussionsupporting

confidence: 85%

“…Previous studies have found that some factors (i.e., gender [McCrae et al, 2005; Van Den Berg, et al, 2008], insomnia [DiNapoli et al, 2017; Scarlett et al, 2021], cognitive impairment [DiNapoli et al, 2017; Khou et al, 2018], chronic health conditions [McCrae et al, 2005; Scarlett et al, 2021], and depression/depressive symptoms [Scarlett et al, 2021]) can influence the association between actigraphy-measured and self-reported sleep parameters in older adults. Overall, the correlations between actigraphy-measured sleep duration and sleep latency were stronger in older women than those in older men.…”

Section: The Association Between Actigraphy-measured and Self-reporte...mentioning

confidence: 99%

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Actigraphic and Self-reported Sleep Measures in Older Adults: Factor Analytic Study

2021

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Actigraphy has been used to measure older adults’ sleep, but few studies have evaluated the factor structure among actigraphy-measured sleep parameters. Additionally, previous studies have reported the association between actigraphy-measured and self-reported sleep parameters in older adults but have not controlled for covariates of gender, insomnia, cognitive impairment, depression, and health conditions. We therefore investigated the factor structure of actigraphy-measured sleep parameters and, controlling for covariates, the association between actigraphy-measured and self-reported sleep parameters in 62 older adults (female: 75.8%; mean age: 69.9). The factor analysis gave a three-factor solution: length of wakefulness during sleep, sleep disruption, and total sleep time. Self-reported sleep parameters and covariates explained actigraphy-measured total sleep time (explained variance: 61%) substantially more than length of wakefulness during sleep (explained variance: 14%) and sleep disruption (explained variance: 11%). Studies need to select sleep measures based on their focus to best understand sleep characteristics in healthy older adults.

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Section: Discussionsupporting

confidence: 85%

Section: The Association Between Actigraphy-measured and Self-reporte...mentioning

confidence: 99%

Actigraphic and Self-reported Sleep Measures in Older Adults: Factor Analytic Study

2021

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“…The age of the samples ranged from 62.1 [ 61 ] to 86.7 years [ 59 ]. Twenty-six studies included a sample with a diagnosis of AD [ 46 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 ], and 28 included a sample with a diagnosis of MCI [ 63 , 65 , 66 , 68 , 69 , 84 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 ,…”

Section: Resultsmentioning

confidence: 99%

“…Eight studies met the inclusion criteria and used actigraphy to evaluate sleep quality in pathological older people [ 59 , 68 , 82 , 83 , 85 , 101 , 102 , 108 ].…”

Section: Resultsmentioning

confidence: 99%

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Sleep Quality and Aging: A Systematic Review on Healthy Older People, Mild Cognitive Impairment and Alzheimer’s Disease

Casagrande

Forte

Favieri

et al. 2022

IJERPH

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Aging is characterized by changes in the structure and quality of sleep. When the alterations in sleep become substantial, they can generate or accelerate cognitive decline, even in the absence of overt pathology. In fact, impaired sleep represents one of the earliest symptoms of Alzheimer’s disease (AD). This systematic review aimed to analyze the studies on sleep quality in aging, also considering mild cognitive impairment (MCI) and AD. The review process was conducted according to the PRISMA statement. A total of 71 studies were included, and the whole sample had a mean age that ranged from 58.3 to 93.7 years (62.8–93.7 healthy participants and 61.8–86.7 pathological populations). Of these selected studies, 33 adopt subjective measurements, 31 adopt objective measures, and 10 studies used both. Pathological aging showed a worse impoverishment of sleep than older adults, in both subjective and objective measurements. The most common aspect compromised in AD and MCI were REM sleep, sleep efficiency, sleep latency, and sleep duration. These results underline that sleep alterations are associated with cognitive impairment. In conclusion, the frequency and severity of sleep disturbance appear to follow the evolution of cognitive impairment. The overall results of objective measures seem more consistent than those highlighted by subjective measurements.

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Effects of a daylight intervention in the morning on circadian rhythms and sleep in geriatric patients: a randomized crossover trial

Schubert,

Laurentius,

Lange

et al. 2024

Eur Geriatr Med

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Purpose During hospitalization, circadian rhythms and sleep are often disrupted, which has negative effects on health outcomes. Therefore, we aimed to investigate whether a daylight intervention in the morning could improve the circadian rhythms of cortisol and melatonin and enhance objective and subjective sleep quality in geriatric patients. Methods The present study is a randomized, two-period crossover trial conducted in a geriatric ward in 15 non-demented geriatric trauma patients with a mean age of 83.1 ± 5.4 years. All patients underwent a daylight intervention period, during which they were exposed to a daylight lamp from 8:00 to 13:00 h, and a control period of 6 days each. Cortisol and melatonin levels were measured on day 5 of each period. Objective and subjective sleep quality were assessed using actigraphy and questionnaires, respectively. Within-participant differences between periods were investigated for all parameters. Results A trend towards improvement in cortisol and melatonin rhythmicity was found. An increase in mean melatonin levels from 0.3 ± 0.1 to 0.9 ± 0.8 ng/L was observed during the intervention period (p = .063). There was also a trend towards increased sleep efficiency, whereas subjective sleep quality tended to decrease. None of the results were significant. Conclusion A daylight intervention in the morning led to a positive trend in cortisol and melatonin rhythmicity, whereas no improvement in subjective sleep quality was found. Trial registration DRKS00028626 at German Clinical Trials Register, 13.06.2022.

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Evaluation of waist-worn actigraphy monitors for the assessment of sleep in older adults with and without Alzheimer’s disease

Cited by 8 publications

References 41 publications

Actigraphic and Self-reported Sleep Measures in Older Adults: Factor Analytic Study

Actigraphic and Self-reported Sleep Measures in Older Adults: Factor Analytic Study

Sleep Quality and Aging: A Systematic Review on Healthy Older People, Mild Cognitive Impairment and Alzheimer’s Disease

Effects of a daylight intervention in the morning on circadian rhythms and sleep in geriatric patients: a randomized crossover trial

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