扁平足與正常足不同運動狀態之足底壓力研究

扁平足的人約佔總人口數的4%，由於足部結構與功能的差異，扁平足役男正側位足弓X光攝影所得之角度大於165度的可改服替代役。對於這些扁平足者在運動上的實際情形仍需要實證性地探究。本研究共收集扁平足(167.6±4.0cm, 63.4+9.1kg)、正常足(170.1±4.6cm, 62.6±7.0kg)各15名役齡男子，以德國Novel公司之Emed-Pedar鞋墊式足底壓力測量系統，進行靜態站立、4.8公里／小時行走及9.6公里／小時速度慢跑的足底壓力測試，以了解扁平足及正常足弓者在不同運動狀態下足底壓力參數的差異。實驗所得資料經單因子變異數分析(α=.05)，獲得以下結果：一、靜態站立時，扁平足在足中內、外側區的最大對地作用力值顯著大於正常足，此結果可說明扁平足在久站後，會感到足弓內側疼痛的原因。二、以4.8公里／小時速度行走時，扁平足在足中內、外側區的對地最大作用力都顯著大於正常足，正常足則在足前區的對地最大作用力顯著大於扁平足，三、以9.6公里／小時速度慢跑時，正常足足中外側區及足前區的最大足底壓力都顯著大於扁平足。四、在眾多足底壓力參數中，測量站立及行走時足中內側區之“最大對地作用力”是評估扁平足有效的方式。

關鍵字

扁平足；役齡男子；足底壓力

並列摘要

The flatfeet persons account for about 4% of total number of populations. Because the structure and function of feet are different, the flatfoot person can take the place of the service if his lateral arch angle which photographs by X-ray is larger than 165 degrees. For these flatfeet still need the substantial investigation in the actual situation on the exercise. This study used fifteen flatfeet service men (167.6±4.0cm, 63.4±9.1kg) and fifteen normal feet service men (170.1±4.6cm, 62.6±7.0kg). The Emed-Pedar system was used to measure the plantar pressure of the man carrying on the static standing, walking (4.8 km/hr), and jogging (9.6 km/hr). Thus we can understand the differences of the plantar pressure parameters between the fiat feet and the normal feet. All the experimental data were analyzed by one-way ANOVA (α=.05), the results were as below: 1) Standing with the static state, the maximal ground reaction force (MF) of the fiat feet (FF) was larger significantly than that of the normal foot (NP) in the inside side and outside side of the midfoot area. It is the reason that the flatfoot was suffering from the pain which occured at the inside of the midfoot after long standing. 2) In walking (4.8 km/br), MF of the FF was larger significantly than that one of the NP in the inside side and outside side of the midfoot area. However, the MF of the NF was larger significantly than that one of the FF. 3) While jogging (9.6km/br), the maximal plantar pressure of the NP was larger significantly than the FF in the outside midfoot area and forefoot area. 4) Among these numerous plantar pressure parameters, measuring the MF of the inside mifoot area with standing state & nature walk is an effective method.