Establishment of method for ameliorating social jet lag by chrono-nutrition and chrono-exercise

2022 Fiscal Year Final Research Report

• Project/Area Number: 18H03198
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 59040:Nutrition science and health science-related
• Research Institution: Waseda University
• Principal Investigator: Higuchi Mitsuru 早稲田大学, スポーツ科学学術院, 名誉教授 (20192289)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Keywords: 社会的時差ボケ / 時間栄養学 / 時間運動学 / 生体リズム / 動脈スティフネス / モーニングサージ

Outline of Final Research Achievements

The present study conducted an observational study of middle-aged and elderly adults and an interventional study of young adults to elucidate the association of chronic and acute social jetlag (SJL) with cardiometabolic risk in Japanese. The results of the observational study suggest that chronic SJL is associated with obesity indices including BMI and waist circumference independently of sleep duration and chronotype. Furthermore, the results of the interventional study suggest that acute SJL increases central arterial stiffness and arguments morning blood pressure surge in Japanese.

Free Research Field

運動生理・生化学

Academic Significance and Societal Importance of the Research Achievements

日本は世界で最も労働時間が長い国家の一つであり、勤労者は平日に十分な睡眠時間を確保しづらい状況にある。したがって、日本人を対象として慢性的および一過性の社会的時差ボケの健康影響を明らかにすることの社会的意義は大きい。