2019 Volume 40 Pages 236-246
To find the effect of the heel height of the pumps for businesses and the age on the walking performance, the 3D motion analysis, the electromyography, the postural movements analysis, the foot pressure measurement were conducted for the 7 young and the 5 middle aged female people. The motion analysis was performed for naked foot and pumps of and heel height 3cm（h3）， 5cm（h5）， 7cm（h7）．We calculated ⊿S, which is the difference between the maximum and the minimum value of the gait cycle curves for the angle, angular velocity, and the angular acceleration of the leg joints of the knees and ankle. The tendency of ⊿S of a right knee joint angle, ⊿S of the right knee angular speed and ⊿S of a right knee angular acceleration became biggest for 3cm heel pumps （h3）．In case of long time's walking, the decrease of ⊿S of each joint occur for the a middle age group with high heel pumps. The electromyogram became highest at the muscle of tibias anterior and the gastrocnemius of 7cm heel pumps （h7）．For postural movements analysis, the length of the track increased in putting on higher heel pumps. For pressure measurements, while a weight track bent by h3 and h5, it was a straight movement in h7.
Key words: 3D motion analysis, electromyography, postural movements analysis，foot pressure measurement.
