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Effect of Active Change of Foot Progression Angle on Lower Extremity Joint During Gait

보행 시 의도적인 발 디딤 각도 변화가 하지 관절 부하에 미치는 영향

  • Go, Eun-Ae (Department of Sport Science, Kookmin University) ;
  • Hong, Su-Yeon (Department of Sport Science, Kookmin University) ;
  • Lee, Ki-Kang (Department of Sport Science, Kookmin University) ;
  • An, Keun-Ok (Department of Sport Science, Dankook University)
  • 고은애 (국민대학교 일반대학원 체육학과) ;
  • 홍수연 (국민대학교 일반대학원 체육학과) ;
  • 이기광 (국민대학교 일반대학원 체육학과) ;
  • 안근옥 (단국대학교 체육학과)
  • Received : 2013.02.18
  • Accepted : 2013.03.20
  • Published : 2013.03.31

Abstract

Efficient gait is compensate for a lack of exercise, but the wrong walking can cause disease that joints, muscles, brain and body structure(Scott & Winter, 1990). Also many researchers has been studied gait of positive mechanism using analytical methods kinetic, kinematic. This study is to identify nature of knee adduction moment, depending on different foot progression angle and the movement of rotation of pelvis and body. Health study subject conducted intended walking with three different angles. The subjects of this study classified three types of walking; walk erect, pigeon-toed walk and an out-toed gait. Ten university students of K without previous operation and disease record selected for this study. For accuracy of this study, three types of walking carried out five times with 3D image analysis and using analysis of ground reaction force to analyze nature of knee adduction moment and the movement of rotation of pelvis and body. Firstly, the HC(heel contact) section value of intended walk erect, pigeon-toed walk and an out-toed gait was not shown statistically significant difference but TO(toe off) section value was shown that the pigeon-toed walk statistically significant. The value of pigeon-toed walk was smallest knee adduction moment(p< 0.005). Secondly, X axis was the change of rotation movement body and pelvis when walk erect, pigeon-toed walk and an out-toed gait. Shown statistically Y axis was not shown statistically significant but Z axis statistically significant(p<0.05). These result show the significant differences on TO section when walking moment reaches HC, it decides the walking types and rotates the foot.

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