The relationship between light exposure and bedtime/wake-up time during school days, holidays and long-stay camp period in Japanese children

IF 1 4区生物学 Q3 BIOLOGY

Biological Rhythm Research Pub Date : 2022-11-28 DOI:10.1080/09291016.2022.2151775

Yuji Minatoya, Akiko Shikano, K. Tanabe, S. Noi

{"title":"The relationship between light exposure and bedtime/wake-up time during school days, holidays and long-stay camp period in Japanese children","authors":"Yuji Minatoya, Akiko Shikano, K. Tanabe, S. Noi","doi":"10.1080/09291016.2022.2151775","DOIUrl":null,"url":null,"abstract":"ABSTRACT This study aimed to clarify the situation of light exposure and examine the relationship between light exposure and bedtime/wake-up time during school days (SD), holidays (HD), and a long-stay camp period (CP) in Japanese children. After data cleaning, the final subjects were 29 children (10.2 ± 1.2 years old, 25 boys and 4 girls) who participated in paid long-term camp programs in the summers of 2019 and 2021. Data on light exposure, bedtime, and wake-up time were collected. The results of the comparison of the total high-intensity light exposure (HLE) hours for each survey period confirmed that HLE was high before the 18:00 zone in CP, and that for SD and HD were high after the 19:00 zone. Furthermore, the longer the total HLE hours before the 18:00 zone and the shorter those after the 19:00 zone were significantly earlier with both bedtime and wake-up time. These findings indicate that daytime and nighttime light exposure in children’s actual living environment is related to their bedtime and wake-up time, and that camping and going to school may be important factors to ensure children’s adequate daytime light exposure.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2022-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biological Rhythm Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1080/09291016.2022.2151775","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

ABSTRACT This study aimed to clarify the situation of light exposure and examine the relationship between light exposure and bedtime/wake-up time during school days (SD), holidays (HD), and a long-stay camp period (CP) in Japanese children. After data cleaning, the final subjects were 29 children (10.2 ± 1.2 years old, 25 boys and 4 girls) who participated in paid long-term camp programs in the summers of 2019 and 2021. Data on light exposure, bedtime, and wake-up time were collected. The results of the comparison of the total high-intensity light exposure (HLE) hours for each survey period confirmed that HLE was high before the 18:00 zone in CP, and that for SD and HD were high after the 19:00 zone. Furthermore, the longer the total HLE hours before the 18:00 zone and the shorter those after the 19:00 zone were significantly earlier with both bedtime and wake-up time. These findings indicate that daytime and nighttime light exposure in children’s actual living environment is related to their bedtime and wake-up time, and that camping and going to school may be important factors to ensure children’s adequate daytime light exposure.

查看原文本刊更多论文

日本儿童上学日、假期及长营期间光照与就寝/起床时间的关系

摘要:本研究旨在阐明日本儿童在上学日(SD)、假期(HD)和长营期(CP)期间的光照情况，并研究光照与就寝/起床时间之间的关系。数据清洗后，最终受试者为2019年和2021年夏季参加长期付费夏令营项目的29名儿童(年龄10.2±1.2岁，男孩25名，女孩4名)。收集光照、就寝时间和起床时间的数据。各调查时段的总高强度光暴露(HLE)小时比较结果表明，CP在18:00之前高，SD和HD在19:00之后高。此外，在18:00之前的总HLE小时越长，在19:00之后的总HLE小时越短，就寝时间和起床时间都显著提前。这些研究结果表明，儿童实际生活环境中白天和夜间的光照与他们的就寝时间和起床时间有关，野营和上学可能是确保儿童充足的日间光照的重要因素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Biological Rhythm Research 生物-生理学

CiteScore

3.00

自引率

9.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The principal aim of Biological Rhythm Research is to cover any aspect of research into the broad topic of biological rhythms. The area covered can range from studies at the genetic or molecular level to those of behavioural or clinical topics. It can also include ultradian, circadian, infradian or annual rhythms. In this way, the Editorial Board tries to stimulate interdisciplinary rhythm research. Such an aim reflects not only the similarity of the methods used in different fields of chronobiology, but also the fact that many influences that exert controlling or masking effects are common. Amongst the controlling factors, attention is paid to the effects of climate change on living organisms. So, papers dealing with biometeorological aspects can also be submitted. The Journal publishes original scientific research papers, review papers, short notes on research in progress, book reviews and summaries of activities, symposia and congresses of national and international organizations dealing with rhythmic phenomena.