健康な成人の歩行中のステップカデンスの調節に対する動力学および運動学的適応
Joan Lluch Fruns1, Maria Cristina Manzanares-Céspedes2, Laura Pérez-Palma1
1Department of Clinic Sciences, University of Barcelona, 08028 Barcelona, Catalonia, Spain.
Journal of functional morphology and kinesiology
|February 20, 2026
まとめ
歩行速度を一定速度で増加させると,歩行時間が短縮され,前足の足底圧力が増加します. これは,歩行中の歩行力学と足の負荷パターンを影響する重要な要因としてカデンスを強調しています.
科学分野:
- バイオメカニクス バイオメカニクス
- 歩行分析 歩行分析について
- 人間 運動 科学 科学 科学
背景:
- ウォーキングカデンスは,スポーツやリハビリテーションで頻繁に変化します.
- 制御された速度での歩行空間時間パラメータと足底圧分布に対するその正確な影響は完全に理解されていません.
研究 の 目的:
- 歩行カデンスの増加が,一時歩行パラメータと固定速度での足底圧力分布にどのように影響するかを調査する.
- より高い頻度で歩行時間を短縮し,前足の負荷を増加させながら,四肢の対称性を維持するかどうかを判断する.
主な方法:
- 52人の成人は,トレッドミールで一定の速度 (1.39 m·s−1) で,3つの定着のペース (110, 120, 130 歩·分−1) で歩きました.
- 空間時間的な歩行データは,OptoGaitを使用して収集され,足底圧は,靴内ソールで測定されました.
- 統計的分析には,繰り返し測定されたANOVA,フリードマンテスト,およびFDR補正によるスピアーマン相関が含まれていました.
主要な成果:
- カデンスを増やすことで,歩行周期の持続時間,接触時間,ステップ時間 (すべてp < 0.01) は,四肢間の対称性を損なうことなく徐々に短縮されました.
- ピーク・プランタル・プレッシャーは,より高いカデンスの複数の前足領域で有意に増加した (p_FDR <0.05).
- テンポラル・ガートパラメータと足底負荷メトリック (p_FDR <0.05) の間で中程度の負の相関が見られた.
結論:
- 歩行速度が一定である場合,より高いカデンスは,歩行時間を体系的に短縮します.
- これは前足の足底負荷の一貫した,地域特有の増加と関連しています.
- カデンスは,安定状態の歩行中に足底の負荷に影響を与える重要な時間的制約であり,同時に時間的-機械的適応を示しています.
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