複数の走行速度で走行する際の関節の角度と足底の負荷に対する中底硬さの影響
Luming Yang1,2, Xinye Liu1,2, Yuan Liu1,2
1National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China.
Frontiers in public health
|August 22, 2025
まとめ
ランニングシューズのミッドソールの硬さは,様々な速度でバイオメカニズムに異なる影響を及ぼします. 柔らかいミッドソールは低速で足首の動きを減らし,高い速度で股関節の動きと前足の負荷を増加させ,怪我のリスクに影響します.
科学分野:
- バイオメカニクス
- スポーツ医学
- 科学の実行
背景:
- ランニングシューズのミッドソールの硬さは 足の保護に不可欠です
- 前回の研究では 走行速度を無視して 走行中の硬さや 走行中の生体力学について 一貫した結果が得られませんでした
- 中底の特性と走行速度の相互作用を理解することは,怪我を防ぐために不可欠です.
研究 の 目的:
- 下肢の関節の角度と異なる走行速度での足底負荷に対する中底硬さの影響を調査する.
- ミッドソールの硬さは,異なる速度で動作するバイオメカニズムに変化する影響を及ぼすかどうかを判断する.
主な方法:
- 8人の男性ランナーが研究に参加しました.
- 参加者は,6つの異なる速度でトレッドミルを走った. 選択した速度 (SSV) から200%のSSVまで,ソフトとハードの両方のミッドソールで走った.
- 下肢の関節の角度と足底の負荷は,高度なモーションキャプチャとインソール技術を使用して測定されました.
主要な成果:
- 柔らかいミッドソールは,低速で足首の逆転を軽減しました (SSVと120%SSV).
- 高速で (180%と200%SSV) 柔らかいミッドソールはヒップアブドクションとメタタサル領域の力を増加させ,安定性を低下させ,前足の怪我のリスクを増やす可能性があります.
- 中底の硬さは,走行速度に相対的に関節と足底の負荷に非線形効果を示した.
結論:
- ミッドソールの硬さは,速度に依存した方法で走行バイオメカニズムに大きな影響を与えます.
- 足首関節の運動はSSVの100~120%,股関節と足首の運動はSSVの180~200%で,怪我を軽減する戦略には極めて重要です.
- ランニング関連の怪我を軽減するランニングシューズやトレーニングプログラムの設計に貴重な洞察を提供します.
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