The Design Of Personalized Orthopedic Insoles For Flatfoot Based On 3D Print And Its Impact On Balance Ability

Purposes: In this research,three-dimensional infrared scans were performed on patients with flat foot,and the model of specific foot was established.A series of parametric design modifications were performed,including the height of the lateral arch and medial arch Settings,material selection,and details of the processing through the3 D printing company to customize the correction of the insoles to print,and to wear on the flat foot wear 3D print correction insoles and do not wear 3D prints to adjust the insoles in the balance test parameters on the difference,On the balance of patients with flat feet.To explore the balance of patients with flattened foot results for the clinical diagnosis of flat foot patients to provide data for the flat foot correction insole design and correction of the basic theory and experimental basis.Results:(1)In the direction of the ANT subjects 1 wear rubber material orthopedic insoles than bare feet left leg far away distance.(PLAT)and the posterior direction(PMED)test values ? ? did not change.(2)In the direction of the ANT subjects 2 wearing nylon material orthopedic insoles than the bare leg left leg far closer.(PLAT)and the posterior direction(PMED)test values ? ? did not change.(2)No significant change in the length of the track under the condition of barefoot closed eyes under barefooted foot condition.However,the corresponding area decreases(Avg.v)(X speed)and X-axis average swing(X dev)did not change significantly;Y-axis shake speed(Y speed)and Y-axis average swing(Y dev)no significant change.(4)Wearing rubber to adjust the insoles under the conditions of one foot under the foot and wear rubber foot insoles under the conditions of single foot under the subject 2 center of gravity moving track length(Length)difference was not;corresponding to the external area(Area)also increased;(X speed)and X-axis average swing(X dev)increase;Y-axisshake speed(Y speed)and Y-axis average swing(Y dev)increase.(5)In the bare feet under the conditions of single foot and wearing nylon material to adjust the insoles under the condition of single foot subject 1 center of gravity moving track length(Length)reduced;corresponding to the outer area(Area)also decreased;center of gravity average speed(X dev)decreases;the X-axis average swing(Y dev)decreases;The X-axis average swing(X dev)decreases;The Y-axis average swing(Y dev)Reduced.(6)In the wear nylon material to adjust the insoles open eyes single and wear nylon material to adjust the insoles under the condition of single foot under the weight of the center of gravity track length(Length)reduced;corresponding to the external area(Area)has increased;center of gravity average speed(Avg(X dev)increases;The X-axis average swing(Y dev)increases.The X-axis average swing(X dev)increases and the Y-axis average swing(Y dev)increases.Conclusions:(1)In this experiment,the flattened footer 1 wear custom rubber material to adjust the insole its dynamic balance ability was strengthened,especially in the sagittal axis direction.Its static balance ability was also strengthened,the center of gravity of the track length(Length),the outer area(Area)decreases,its Y axis(sagittal axis)swing speed was also significantly reduced.(2)Flat feet of the subjects to wear custom nylon insoles in the test found that its dynamic balance has not been strengthened in the posterior and posterior direction of the test results did not significantly change.(Avg.v)is reduced;The X-axis moving speed(X speed)and the X-axis moving speed(X-speed)are reduced,and the center-to-center velocity(Avg.v)Y-axis deceleration(Y speed)decreases;X-axis average swing(X dev)decreases;Y-axis average swing(Y dev)decreases.Indicating that its static balance capacity has been strengthened.