楕円近似小グループ解析による膝関節回旋点座標の位置解析

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  • Position analysis of rotation center for knee joint by using ellipse approximate small group analysis
  • ダエン キンジ ショウグループ カイセキ ニ ヨル シツカンセツ カイセンテン ザヒョウ ノ イチ カイセキ

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A new convenient method to estimate a motion pattern of knee joint center is proposed in this paper. Knee joint is not a point. The motion analysis of the joint is difficult, since the knee motion is constructed by sliding and rotation. The center of knee joint moves by knee motion. If a motion pattern of knee joint center is analyzed, knee joint trouble can be detected. Ellipse approximate small group analysis is developed in this study. In the method, knee joint center is measured by ellipse approximate of moving malleolus position. By using the analysis, the knee joint center is measured in low error rate. Using the method, trouble of knee joint will be predicted. In this study, malleolus position is measured by digital video image. Subjects have no muscle burden.

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