2022 Fiscal Year Final Research Report

Objective health assessment of sleep and fatigue for children in after-school day care services

Research Project

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Project/Area Number	20K02894
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Review Section	Basic Section 09040:Education on school subjects and primary/secondary education-related
Research Institution	Kyoto Women's University
Principal Investigator	Okawa Naoko 京都女子大学, 発達教育学部, 教授 (70369685)
Co-Investigator(Kenkyū-buntansha)	倉恒弘彦大阪公立大学, 大学院医学研究科, 客員教授 (50195533) 福田早苗関西福祉科学大学, 健康福祉学部, 教授 (50423885) 水野敬国立研究開発法人理化学研究所, 生命機能科学研究センター, 上級研究員 (60464616) 藤岡弘季関西福祉科学大学, 健康福祉学部, 教授 (70382083) 治部哲也関西福祉科学大学, 健康福祉学部, 教授 (90352989)
Project Period (FY)	2020-04-01 – 2023-03-31
Keywords	放課後等デイサービス / 児童生徒 / 睡眠 / 疲労 / 睡眠覚醒リズム / 自律神経機能
Outline of Final Research Achievements	We conducted a study on sleep and fatigue in children who attend after-school day care services, with the aim of using the resulting information in health education relating to sleep and fatigue in childhood. As a result of comparing children attending after-school day care services with general children, children attending after-school day care services had significantly higher mental fatigue scores and total fatigue scores in the subjective symptom survey. In the sleep-wake rhythm analysis, children attending after-school day care services showed a decrease in daytime activity, an increase in the number of naps, and an increase in the number of awakenings at night, as well as lower sleep efficiency, but significantly longer sleep duration. Autonomic function analysis showed that Log LF, indicating sympathetic and parasympathetic activity, and Log (LF/HF), indicating relative sympathetic tone, were significantly higher in the after-school day service children.
Free Research Field	応用健康科学
Academic Significance and Societal Importance of the Research Achievements	本研究では、厚生労働省研究班が発表した睡眠覚醒リズム解析や自律神経機能解析など客観的に健康状態を評価する方法を用いて、児童生徒の心身の健康状態を把握し、睡眠リズムの乱れに関連した心身の客観的バイオマーカーを明らかにした。その結果、放課後等デイサービスの児童生徒における心身の疲労状態は睡眠時間、日中活動量、自律神経機能などと関連があり、睡眠時間は疲労との関連があることが明らかになった。放課後等デイサービスの児童生徒の健康管理を行ううえで、客観的な健康指標を明らかにし、児童生徒への睡眠や疲労に関する健康教育に活用することは極めて重要なことである。