The Study Of High Heels With Walking Gait, Plantar Pressure And Biomechanical Characteristics For Young Women

On one hand, women could change their posture and enhance their beauty with wearing highheels. But, on the other hand, wearing high heels for such a long time will bring a certain damage tothe female’s feet and produce the pain for their heels’ or legs’ muscles. With the growth of the heightof high heels, the force position of spin may change and the lumbosacral joint may have lesion.Although the high heels will bring lots of uncomfortable troubles to women, there are still a lot ofwomen decide to wear that due to the needs of working, beauty, even for the art. The aim of thisstudy is to guide women how to chose a pair of suitable high heels for themselves through analysingthe gait of women with different height of high heThis study tests12girls who come from art fashion show major of Shandong SportsUniversity with biomechanics method. Girls walk on the ground and run tests with wearing differenthigh heels and apply3D camera technology and Germany SIMI motion video analysis system aswell as the methods of electricity and plantar pressure test analysis system to analyse the gait in theprocess of walking of women.The study shows that when walking on the ground, the steps of the bare feet and the flat shoesare longest, as the heel height increases to3-6cm, the step is reducing by the increasing of the heightof the heel, so as the period of the step. When walking with bare feet and flat shoes, the center ofgravity changes least, the stability of the gravity is relatively high. With the increasing of the heelheight, the center of gravity changes notable and the stability of the gravity is poor, therefore, thecenter of gravity is the most stable when walking with flat shoes. Meanwhile, the results show thatthe gait time of the bare feet are shortest, followed by flat shoes. The test of the women to weardifferent high heels plantar pressure, When the heel height is13cm, foot mechanical joints aremainly concentrated in: M1, M2, and M3. Thus, the increasing of the heel height will make the bodyforward and the center of gravity forward, as well as make the front of the foot support morepressure of the body, so the heel height is too high is one of the reasons for the injury of the footextremely.When walking on the ground, the MF of left and right extremitatis inferiors muscles areincreasing as the time changing and heel height increased, the MF of left and right gastrocnemius increased obvious, the soleus muscle followed. And the MPF and ZCR of other muscle are changingmore as the heel height increased, but the range is less than the gastrocnemius and soleus muscle.The data of AEMG of both leg directed that left and right extremitatis inferiors exist differencesbetween advantages and disadvantages. The results show that the effect of the AEMG of bicepsfemoris muscle is large in walking in the ground, at the same time, as the growth of heel height andthe change of time, the change of the biceps femoris muscle is obvious, soleus muscle is followed.The AEMG of left and right extremitatis inferiors is different.In the parameter of the kinematic, the significant differences are on the angle of the left andright hip、the knee and the ankle when walking with flat shoes（P＜0.05）, the angle and the speed ofthe hip, the knee and the ankle are influenced after continuous movement. The differences betweenthe compare of tired of the angle of the hip is not significant when the heel height are6cm and13cmin continuous movement（P＞0.05）. This indicates that the increasing of the heel height makes lessinfluences on the change of the angle and the speed of the hip. While when the heel height increasedto6cm and13cm,the angle of the knee and the ankle increased with the growth of the movementtime, the angle of the knee starts to be small from big, as the speed of joints begins to decline in thecontinuous movement, which shows the a continuous movement has a great impact on the angle andthe speed of the knee and the ankle.