Investigation of exercise strategy for preventing post-exercise reduction in physical activity: Focusing on exercise pattern during treadmill running

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K21199
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0909:Sports sciences, physical education, health sciences, and related fields
• Research Institution: University of Tsukuba
• Principal Investigator: Funabashi Daisuke 筑波大学, 体育系, 研究員 (90963695)
• Project Period (FY): 2022-08-31 – 2024-03-31
• Keywords: 運動 / 身体活動 / 非運動性身体活動 / 運動形態 / 身体不活動

Outline of Final Research Achievements

Since physical activity is sometimes decreased following exercise, investigation of exercise strategies that prevent decreased physical activity following exercise is required for achieving a comprehensively active lifestyle. Therefore, this study examined the effect of the exercise pattern (intermittent or sustained) during treadmill running on post-exercise physical activity in mice. Consequently, despite mice engaged in the same volume of exercise, physical activity was decreased following exercise in mice that exercised in a sustained pattern, but not in mice that exercised in an intermittent pattern. Hence, to avoid post-exercise reduction in physical activity, it may be preferable to engage in exercise in an intermittent pattern.

Free Research Field

運動生理学

Academic Significance and Societal Importance of the Research Achievements

本研究において、たとえ同じ運動量であっても、運動形態の違いにより運動後の身体活動量の応答が変化することが明らかになった。つまり、身体不活動を防ぐために運動を活用するには「運動時にどれだけ身体活動量を増やすか」だけでなく、「運動後に身体活動量が減少しにくいか」といった視点を持つことも重要であると考えられる。本知見は、不活動を防ぐための効果的な運動戦略の解明に新しい示唆をもたらし、不活動に関連した健康被害の改善に貢献する可能性を秘める。さらに、今回用いた動物モデルを活用することで、運動後に身体活動量が減少する生体内メカニズムの解明やバイオマーカーの検討が進むことが期待される。