Abstract
[Purpose] The purpose of this study was to analyze the biomechanical changes and patterns of the lower extremities after gait termination in middle-aged and elderly women. [Subjects] The study population comprised an elderly group and middle-aged group. [Methods] To collect kinematic and kinetic data related to gait termination, six infrared cameras and one force platform were used, and variables were calculated by using Visual 3D. [Results] During the termination phase, the elderly group generated less braking force than the middle-aged group. During initiation of the termination phase and after the center of gravity completely stopped moving, there was a difference between the two groups in the hip joint angle. During the termination phase, the maximum angular velocity and extension moment of the ankle joint and those of the knee joint were higher in the elderly group than in the middle-aged group. [Conclusion] In contrast to the middle-aged group that showed a rapid increase and then decrease of the initial extension moment during gait termination, the maximum extension moment that was created during the early stage of the termination phase in the elderly group continued until the center of gravity completely stopped.
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