Investigation for the foot type related to the running injury

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K19815
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 59010:Rehabilitation science-related
• Research Institution: Morinomiya University of Medical Sciences
• Principal Investigator: Kudo Shintarou 森ノ宮医療大学, 総合リハビリテーション学部, 教授 (70737915)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: 足部 / 三次元動作解析 / ランニング障害 / 伸縮性歪みセンサー / サポーター

Outline of Final Research Achievements

The aim of this study was to define a new foot type classification and to elucidate some of the mechanisms underlying the development of running disorders. Previously, foot types have been classified as flatfoot or high-arch on the basis of the state of the medial longitudinal arch during static standing. However, sports injuries such as running occur when the foot is exposed to greater ground reaction forces than in static standing. Therefore, it was deemed necessary to classify foot types based on how the foot changes during exercise such as running and walking. In particular, this study focused on medial tibial stress syndrome, a common running injury, and found that excessive forefoot movement relative to the hindfoot was involved in its development.

Free Research Field

理学療法学

Academic Significance and Societal Importance of the Research Achievements

本研究の結果，代表的なランニング障害のMedial tibial stress syndromeを予防する上で，後足部に対する前足部の過度な運動が生じているタイプを抑制する必要があることが判明した．この成果はランニング障害発生機序を運動学的に捉えたことになり，障害予防に有効である．具体的には後足部に対する前足部の過度な運動を抑制するサポーターや靴などのFootwearの開発や運動療法の提案が今後可能になる．