Relationship between the amount of change in medial longitudinal arch height of the foot on static weight bearing and the amount of change in the knee flexion angle during single-leg landing

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  • Kamiike K
    Department of Rehabilitation, Nishinomiya Kaisei Hospital Heisei Medical Welfare Group Research Institute
  • Kawaguchi K
    Department of Physical Therapy, School of Rehabilitation, Hyogo Medical University
  • Onishi S
    Department of Orthopedics, Nishinomiya Kaisei Hospital
  • Yoshiya S
    Department of Orthopedics, Nishinomiya Kaisei Hospital

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  • 静的荷重下における足部内側縦アーチ高変化量と片脚着地時の膝屈曲角度変化量の関係
  • セイテキ カジュウ カ ニ オケル ソクブ ウチガワ タテ アーチ コウヘンカリョウ ト カタ キャク チャクチジ ノ ヒザ クッキョク カクド ヘンカリョウ ノ カンケイ

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Abstract

<p>The purpose of this study was to examine the relationship between the amount of change in medial longitudinal arch height of the foot (MLA) on static weight bearing and the amount of change in knee flexion angle during single-leg landing. The subjects were 22 healthy adults comprising 11 males and 11 females. In evaluation of the foot alignment, distance from the floor to the most prominent part of the navicular tuberosity was measured in the sitting and standing positions, and the difference in the distance between the two positions was defined as amount of change in MLA. In the kinematic analysis of landing, markers were attached to the bony landmarks in the lower limbs, single-leg landing from a 30-cm-high platform. And then, knee flexion angle was measured on the video image. The analysis of the obtained results showed a significant negative correlation between the amount of change in MLA and change in knee flexion angle during single-leg landing. Although there have been studies reporting the effect of MLA on knee valgus angle during landing, the results of this study suggest that MLA also relates to the amount of change in the knee flexion angle in landing.</p>

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