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The association among weekly variations in lifestyle, chronotype, circadian variation and health-related QOL

Research Project

Project/Area Number 21K11538
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59030:Physical education, and physical and health education-related
Research InstitutionHiroshima Institute of Technology

Principal Investigator

Nishimura Kazuki  広島工業大学, 環境学部, 准教授 (50550026)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Keywords社会的時差ボケ / 食事性時差ボケ / 不規則性 / 睡眠 / 食事 / 健康関連QOL / 週内変動 / クロノタイプ / 睡眠時刻のバラツキ / 食事時刻のバラツキ / 変動係数 / 標準偏差 / eating jet lag / 運動 / 生活習慣
Outline of Research at the Start

本研究は社会的時差ボケの定量的評価方法として1週間の変動係数を用い,社会的時差ボケ(生活習慣の週内変動)とクロノタイプ,日内変動特性,健康関連QOL尺度の関連性を明らかにする.研究成果に基づき生活習慣の週内変動に着目した生活指導介入プログラムを開発する.生活習慣の週内変動が大きい者は夜型傾向を強め,概日リズム特性の乱れ,精神的QOL尺度の低下を引き起こすが,開発する生活指導介入プログラムによって改善できるものと期待される.

Outline of Final Research Achievements

This study investigated the relationship among weekly variations in lifestyle, chronotype, and health-related QOL. Factors affecting social jetlag included the standard deviation in wake-up time (standardized coefficient 0.49), difference in bedtime on weekdays and holidays days (0.45), the difference in sleep duration on weekdays and holidays (0.26), the standard deviation in bedtime (0.21), and the coefficient of variation in sleep duration (-0.17) ((F=677.1, adjusted R-squared=0.76). There were significant relationships between the standard deviation in the first and last mealtime and eating jetlag, the time in first and last meal, the difference in non-eating duration between weekdays and holidays, and the coefficient of variation in non-eating duration. Furthermore, it was revealed that there were relationships among health-related QOL, social jetlag, eating jetlag, chronotype, and irregularity in lifestyle.

Academic Significance and Societal Importance of the Research Achievements

社会的時差ボケの指標と起床・就寝時刻の標準偏差,睡眠時間の変動係数に正の相関関係が観察された.さらに,重回帰分析を用いて,社会的時差ボケが休日と平日の起床・就寝時刻の遅延に比較して,起床時刻の標準偏差の影響度が大きいことを明らかにした.食事性時差ボケは食事摂取時刻の不規則性を反映している.これらのことは,社会的および食事性時差ボケが休日の夜型化を含めた生活習慣の不規則性から生じることを示す学術的意義の高い知見である.さらに,夜食の頻度,健康関連QOLのサマリースコアの高低で群分けを行い,詳細に検討した.得られた知見は日常生活にすぐに応用することが可能であり,社会的意義が高い実践研究である.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (8 results) Remarks (1 results)

  • [Journal Article] Effects of Irregular Mealtimes on Social and Eating Jet Lags among Japanese College Students2023

    • Author(s)
      Nishimura Kazuki、Tamari Yutaro、Nose Yuka、Yamaguchi Hidetaka、Onodera Sho、Nagasaki Koji
    • Journal Title

      Nutrients

      Volume: 15 Issue: 9 Pages: 2128-2128

    • DOI

      10.3390/nu15092128

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The relationship between variation in time of waking up and going to bed for a week and social jetlag in young men2022

    • Author(s)
      西村 一樹、玉里 祐太郎、山口 英峰、小野寺 昇、長﨑 浩爾
    • Journal Title

      JAPANESE JOURNAL OF BIOMETEOROLOGY

      Volume: 59 Issue: 1 Pages: 15-24

    • DOI

      10.11227/seikisho.59.15

    • ISSN
      0389-1313, 1347-7617
    • Year and Date
      2022-07-30
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Examination of sleep factors affecting social jetlag in Japanese male college students2022

    • Author(s)
      Nishimura Kazuki、Tamari Yutaro、Yamaguchi Hidetaka、Onodera Sho、Nagasaki Koji
    • Journal Title

      Chronobiology International

      Volume: - Issue: 2 Pages: 1-7

    • DOI

      10.1080/07420528.2022.2158845

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 食事時刻の週内変動と食事性時差ボケの関係2023

    • Author(s)
      西村一樹,玉里祐太郎,野瀬由佳,山口英峰,小野寺昇,長﨑浩爾
    • Organizer
      第90回日本体力医学会中国四国地方会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 社会的および食事性時差ボケに及ぼす食事時刻の週内変動の影響2023

    • Author(s)
      西村一樹,山口英峰,小野寺昇
    • Organizer
      日本体育・スポーツ・健康学会第73回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 健康関連QOL尺度と睡眠と食事時刻の週内変動の関係2023

    • Author(s)
      西村一樹,玉里祐太郎,野瀬由佳,山口英峰,小野寺昇,長﨑浩爾
    • Organizer
      第91回日本体力医学会中国四国地方会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 重回帰分析を用いた社会的時差ボケに及ぼす睡眠要因の検討2022

    • Author(s)
      西村一樹,玉里祐太郎,山口英峰,小野寺昇,長﨑浩爾
    • Organizer
      第88回日本体力医学会中国四国地方会
    • Related Report
      2022 Research-status Report
  • [Presentation] 短時間睡眠が全身持久力および代謝に与える影響2022

    • Author(s)
      長﨑浩爾,玉里祐太郎,西村一樹
    • Organizer
      第88回日本体力医学会中国四国地方会
    • Related Report
      2022 Research-status Report
  • [Presentation] 男子大学生における夕食後の間食頻度と食事,睡眠習慣の関係2022

    • Author(s)
      西村一樹,玉里祐太郎,山口英峰,小野寺昇,長﨑浩爾
    • Organizer
      第89回日本体力医学会中国四国地方会
    • Related Report
      2022 Research-status Report
  • [Presentation] 食事摂取時刻の週内変動と社会的時差ボケの関連性2022

    • Author(s)
      西村一樹,玉里祐太郎,山口英峰,小野寺昇,長﨑浩爾
    • Organizer
      第77回日本体力医学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 睡眠習慣の変動と社会的時差ボケの関連性2021

    • Author(s)
      西村一樹,玉里祐太郎,山口英峰,小野寺昇,長﨑浩爾
    • Organizer
      第87回日本体力医学会中国四国地方会
    • Related Report
      2021 Research-status Report
  • [Remarks] 広島工業大学プロジェクト研究センター紹介(健康増進スポーツ科学研究センター)

    • URL

      https://www.it-hiroshima.ac.jp/for-research/project/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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