Relationships between Pronation and Supination of the Forefoot and Rearfoot and Internal Hip, Knee and Ankle Moments during Gait: Motion Analysis Using a Multi-segment Foot Model

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  • EDO Masahiro
    Department of Physical Therapy, Faculty of Health Science Technology, Bunkyo Gakuin University

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Other Title
  • 歩行時の後足部および前足部の回内外と下肢関節内的モーメントの関係
  • 歩行時の後足部および前足部の回内外と下肢関節内的モーメントの関係 : Multi-segment foot modelを用いた分析
  • ホコウジ ノ アトアシブ オヨビ ゼン ソクブ ノ カイ ナイガイ ト カシ カンセツ ナイテキ モーメント ノ カンケイ : Multi-segment foot model オ モチイタ ブンセキ
  • —Multi-segment foot modelを用いた分析—

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Description

[Purpose] This study aimed to clarify the relationships between pronation and supination of the rearfoot and forefoot and internal hip, knee and ankle moments during gait. [Subjects and Methods] The subjects were sixteen healthy young adults. The lower limb motion during gait was measured using a 3D motion analysis system and force plates. The rearfoot and forefoot motions were calculated based on the Oxford foot model, and were examined in relation to each joint angle and moment. [Results] During loading response, the rearfoot pronation positively correlated with the internal knee extension moment and ankle dorsiflexion and supination moments. During the latter half of the stance phase, forefoot pronation positively correlated with the knee joint varus angle and internal vastus moment. [Conclusion] The results of this study suggest that rearfoot pronation contributes to shock absorption at the knee and foot during the loading response, and that forefoot pronation contributes to outward movement of the knee joint during the latter half of the stance phase.

Journal

  • Rigakuryoho Kagaku

    Rigakuryoho Kagaku 33 (1), 165-168, 2018

    The Society of Physical Therapy Science

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