Measuring medial longitudinal arch deformation during gait. A reliability study
Bencke, J., Christiansen, D., Jensen, K., Okholm, A., Sonne-Holm, S., & Bandholm, T. (2012).
Gait & Posture, 35(3), 400–404.
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Clinical evaluation of medial longitudinal arch deformation (MLAD) during walking gait is often estimated from static measures of e.g. navicular drop (ND) measured during quiet standing. The aim of the present study was to test the reliability of a new three-dimensional method of measuring the MLAD during gait and to compare this method with a static measure and a 2D dynamic method. Fifty-two feet (26 healthy male participants) were tested twice 4-9 days apart in a biomechanical gait analysis laboratory using a 3D three-marker foot model, a 2D video-based model for the measurement of MLAD during gait, and ND for measurements of MLAD during quiet standing. The 3D method showed the highest test-retest reliability among the measurements of MLAD. Furthermore, the ND showed only moderate correlation with both measurements of MLAD during gait. The new 3D method was found to be highly reliable and showed that ND obtained during quiet standing could not predict the MLAD during gait. The 3D method, or alternatively the 2D method, may be used in clinical settings as reliable methods for easy estimation of the foot longitudinal stability. 歩行中の内側縦アーチ変形（MLAD）の臨床評価は、多くの場合、例えば静かな立位中に測定された舟状骨降下（ND）。本研究の目的は、歩行中にMLADを測定する新しい3次元方法の信頼性をテストし、この方法を静的測定および2D動的方法と比較することでした。 52フィート（26人の健康な男性参加者）は、3次元3マーカー足モデル、歩行中のMLAD測定用の2Dビデオベースモデル、およびND静かに立っている間のMLADの測定。 3Dメソッドは、MLADの測定の中で最高のテストと再テストの信頼性を示しました。さらに、NDは歩行中のMLADの両方の測定値と中程度の相関関係のみを示しました。新しい3Dメソッドは非常に信頼性が高く、静かな立ち位置で得られたNDが歩行中にMLADを予測できないことを示しました。 3Dメソッド、または2Dメソッドは、足の縦方向の安定性を簡単に推定するための信頼できる方法として、臨床現場で使用できます。 keywords: