Three-dimensional deformation of the plantar aponeurosis during human gait

2022 Fiscal Year Final Research Report

• Project/Area Number: 19H04009
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 59020:Sports sciences-related
• Research Institution: Kanagawa University
• Principal Investigator: Kinugasa Ryuta 神奈川大学, 人間科学部, 教授 (10409378)
• Co-Investigator(Kenkyū-buntansha): 鈴木 崇人 神奈川大学, 人間科学部, 非常勤講師 (20638960) ; 八重嶋 克俊 神奈川大学, 人間科学部, 非常勤講師 (50625910) ; 荻原 直道 東京大学, 大学院理学系研究科(理学部), 教授 (70324605)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 足底腱膜

Outline of Final Research Achievements

The purpose of this study was to clarify the deformation of the plantar tendon membrane while humans walk. The first outcome was to measure the ankle angle during exertion using a non-magnetic force device that can be used in the MR room. The average angle was 9 degrees, which is smaller than the results of previous studies. The second outcome was to determine static plantar tendon stiffness. Plantar tendon stiffness during standing was measured and Young's modulus was estimated to be 64.7 ± 9.4 kPa, which increased exponentially with dorsiflexion of the metatarsophalangeal joint. The third experiment was planned to measure plantar tendon length changes by walking with multiple ultrasound probes affixed to the plantar tendon membrane, but this experiment could not be performed.

Free Research Field

スポーツ科学

Academic Significance and Societal Importance of the Research Achievements

ヒト足底腱膜に関する定量的な情報は、ヒトの足の詳細なバイオメカニカルモデルの構築に貢献し、足底腱膜の力学的機能と病的メカニズムの理解を深める可能性がある。