A Study of Physical Fitness, Physical Activity, and Sleep Quality in Elementary and Junior High School Students

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K11575
• 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: Osaka Kyoiku University
• Principal Investigator: Tetsuguchi Munehiro 大阪教育大学, 教育学部, 教授 (70397793)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: ActiGraph / 体力 / 身体活動量 / 睡眠 / 小児

Outline of Final Research Achievements

The purpose of this study was examine the relationship between physical fitness, physical activity using a tri-axis accelerometer, and sleep quality in elementary and junior high school children. Although the study was difficult to conduct during the period of the study due to the impact of COVID-19, the following findings were obtained in elementary school children. The results showed that both daily physical activity and sleep duration deviated from weekday and weekend, suggesting the need to promote improvement. When the relationship between sleep duration and daily physical activity was determined, a significant positive correlation was found between moderate-to-vigorous physical activity and actual sleep duration, rather than time in bed. These results suggested that daily physical activity affects sleep quality.

Free Research Field

健康科学

Academic Significance and Societal Importance of the Research Achievements

子どもの身体活動量について世界保健機関（2022）は、中高強度身体活動を1日少なくとも60分以上を推奨している。わが国においても「アクティブ・チャイルド60min」にて同様の推奨値が指示されている。本研究は子どもの身体活動量、特に中高強度身体活動時間を示した点において有意義であると判断される。
また、中高強度身体活動時間とベッド内時間ではなく実際の睡眠時間と関係があり、日常の身体活動が睡眠の質に影響を及ぼすといった知見を得られたことは、学術的に意義のあるものと考えられる。