Long-term effects of environmental dynamic lighting on sleep–wake rhythm, mood and behaviour in older adults with intellectual disabilities

IF 2.1 2区医学 Q1 EDUCATION, SPECIAL Journal of Intellectual Disability Research Pub Date : 2024-03-19 DOI:10.1111/jir.13133

M. N. Böhmer, A. Oppewal, P. J. E. Bindels, E. J. W. van Someren, D. A. M. Festen

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Abstract

Background

Sleep–wake problems and depressive symptoms are common in people with intellectual disabilities (IDs) and are thought to be related to the unstable sleep–wake rhythm in this population. Previously, we showed that after increasing environmental light exposure, mid-sleep and sleep onset advanced, and mood improved over a period of 14 weeks after installing environmental dynamic light installations in the living room of people with IDs. We invited participants of that short-term study to take part in the current study on sleep–wake rhythm, mood and behaviour in older adults with IDs 1 year after installing environmental dynamic light installations in the common living rooms of six group homes.

Methods

A pre–post study was performed from October 2017 to February 2019. We included 45 participants (63.5 ± 8.5 years, 67% female) from six group home facilities who provided data at baseline (9, 4 and 1 weeks prior to installing light installations), short term (3, 7 and 14 weeks after installing light installations) and 1 year (54 weeks after installing light installations). Wrist activity was measured with actigraphy (GENEActiv) to derive the primary outcome of interdaily stability of sleep–wake rhythms as well as sleep estimates. Mood was measured with the Anxiety, Depression and Mood Scale. Behaviour was measured with the Aberrant Behaviour Checklist.

Results

One year after installing dynamic lighting, we did not find a change in interdaily stability. Total sleep time decreased (β = −25.40 min; confidence interval: −10.99, −39.82), and sleep onset time was delayed (β = 25.63 min; confidence interval: 11.18, 40.08). No effect on mood or behaviour was found.

Conclusions

We did not find a change in sleep–wake rhythm, mood or behaviour in older persons with IDs living in care facilities 1 year after installing the light. We did find evidence for a long-term effect on sleep duration and sleep timing. The results have to be interpreted with care as the current study had a limited number of participants. The need for more research on the long-term effects of enhancing environmental light in ID settings is evident.

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环境动态照明对智障老年人睡眠-觉醒节奏、情绪和行为的长期影响。

背景：睡眠-觉醒问题和抑郁症状是智障人士（IDs）的常见问题，据认为这与该人群不稳定的睡眠-觉醒节律有关。此前，我们的研究表明，在智障人士的起居室安装环境动态光装置后，经过14周的时间，随着环境光照射量的增加，睡眠中期和睡眠开始时间提前，情绪也有所改善。我们邀请该短期研究的参与者参加目前的研究，在六家集体宿舍的公共起居室安装环境动态光装置一年后，对智障老年人的睡眠-觉醒节律、情绪和行为进行研究：2017年10月至2019年2月进行了一项前后期研究。我们纳入了来自六家集体之家设施的 45 名参与者（63.5 ± 8.5 岁，67% 为女性），他们提供了基线（安装灯光装置前 9 周、4 周和 1 周）、短期（安装灯光装置后 3 周、7 周和 14 周）和 1 年（安装灯光装置后 54 周）的数据。腕部活动通过动觉仪（GENEActiv）进行测量，以得出睡眠-觉醒节律的日间稳定性和睡眠估计值这一主要结果。情绪采用焦虑、抑郁和情绪量表进行测量。行为采用异常行为检查表进行测量：结果：安装动态照明一年后，我们没有发现日间稳定性的变化。总睡眠时间减少了（β = -25.40分钟；置信区间：-10.99，-39.82），睡眠开始时间延迟了（β = 25.63分钟；置信区间：11.18，40.08）。没有发现对情绪或行为的影响：我们没有发现在护理设施中居住的患有智障的老年人在安装灯光一年后睡眠-觉醒节奏、情绪或行为发生了变化。但我们确实发现了对睡眠时间和睡眠时间产生长期影响的证据。由于本次研究的参与者人数有限，因此必须谨慎解释研究结果。显然，有必要对增强 ID 环境光线的长期影响进行更多研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Intellectual Disability Research Multiple-

CiteScore

5.60

自引率

5.60%

发文量

期刊介绍： The Journal of Intellectual Disability Research is devoted exclusively to the scientific study of intellectual disability and publishes papers reporting original observations in this field. The subject matter is broad and includes, but is not restricted to, findings from biological, educational, genetic, medical, psychiatric, psychological and sociological studies, and ethical, philosophical, and legal contributions that increase knowledge on the treatment and prevention of intellectual disability and of associated impairments and disabilities, and/or inform public policy and practice. Expert reviews on themes in which recent research has produced notable advances will be included. Such reviews will normally be by invitation.