歩行動作における膝間接運動拘束による代償動作の解析

概要

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The purpose of study is to clarify the trick motion of knee joint kinematics with constraint ofopposite knee joint motion. Six healthy male subjects with no history of knee injury were studied.Informed consent was obtained from the subjects and the experimental study was approved by the Bioethical Review Committee of the HAKODATE National College of Technology, HAKODATE, Japan. Three dimensional knee kinematics and ground reaction force were measured in gait analysis with constraint flexion or extension of one side knee joint. In the analysis of gait,six-degrees-of-freedom goniometer was used to measure knee kinematics and ground reaction force was measured by force plate. In the results, external rotation of knee after heel contact and vertical reactionforce in stance phase was increased with constraint of opposite knee flexion. Further, in the condition constrained opposite knee extension, external rotation of knee in swing phase and vertical reaction force in stance phase was increased. These results were identified as trick motion with constraint of oppositeknee joint motion.