A cohort study on the amount of physical activity in school life for elementary school students

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K11577
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 59030:Physical education, and physical and health education-related
• Research Institution: Okayama University
• Principal Investigator: Adachi Minoru 岡山大学, 教育学域, 教授 (70271054)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: 身体活動量 / 加速度計 / 小学生 / 行間休憩 / 昼休み休憩 / 体育の時間 / 学校生活 / コホート研究

Outline of Final Research Achievements

This study assessed medium- and high-intensity physical activity (MVPA) by examining physical activity longitudinally (2019-23) in elementary school students (87 students). Significant decreasing trends by grade level were observed for the number of steps taken during interwork breaks and lunch breaks. There was no decreasing trend in number of steps or MVPA in school as students moved up in grade. On the other hand, the number of steps and MVPA during interschool recess, lunch, and lunch break tended to decrease with grade level, indicating that in-school physical activity tracks relatively more strongly with boys than with girls.

Free Research Field

子どもの健康増進科学

Academic Significance and Societal Importance of the Research Achievements

小学生を対象に、身体活動量を同じ対象者で経年的に追跡した研究報告は少なく、歩数・MVPAを指標とした身体活動の測度から子どもの発育発達をとらえる上で、経年的な追跡調査による検討は学術的・社会的意義が大きい。