Research of the integrative adjustment on metabolism to support ability for locomotion and run in human.

2021 Fiscal Year Final Research Report

• Project/Area Number: 19H04022
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 59030:Physical education, and physical and health education-related
• Research Institution: Doshisha University
• Principal Investigator: Fukuoka Yoshiyuki 同志社大学, スポーツ健康科学部, 教授 (20265028)
• Co-Investigator(Kenkyū-buntansha): 堀内 雅弘 山梨県富士山科学研究所, その他部局等, 研究員 (50310115) ; 上林 清孝 同志社大学, スポーツ健康科学部, 准教授 (70415363) ; 安陪 大治郎 九州産業大学, 健康・スポーツ科学センター, 准教授 (10368821)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 歩行 / 換気 / 骨格筋 / 環境 / 循環

Outline of Final Research Achievements

The integrated respiratory, circulatory, and muscular regulatory systems involved in walking were examined using the sinusoidal walking pattern, and the following findings were obtained: 1) When body weight was reduced using body wright support, energy metabolism decreased, but increased respiration and leg muscle activity were observed, and a linkage between respiration and muscle activity was found. 2) Comparing running exercise and mixed walking/running exercise, metabolic response and muscle activity response diverged in complete running exercise. This suggests that the skeletal muscles use viscoelastic energy. 3) During walking in a low-temperature environment, there was a marked decrease in body temperature, and the energy metabolic response was attenuated even when the same amount of work was imposed.

Free Research Field

人類学

Academic Significance and Societal Importance of the Research Achievements

歩行は日常の身体活動であり、歩行に関わる身体機能は複合的である。そこで呼吸・循環・筋の統合的な調節系についてサイン波状歩行様式を用いて検討した。その結果、体重を軽減するとエネルギー消費は減るが、筋活動が賦活し免荷での筋の活動機構が変わった。次に、走歩行混在運動と比較して走運動では筋肉の弾性を巧みに使用してエネルギー消費量を抑えていた。さらに、寒冷環境での歩行は、物理的熱移動が活発になるので、エネルギー代謝量を下げ応答性を劣化させていた。