目的研究不同高跟鞋给青年女性步态带来的影响,为高跟鞋的设计提供科学量化的理论依据。方法常速摄像和footscanUSB平板测试系统相结合,对10名平均年龄(19.2±0.42)岁的青年女性进行裸足及穿不同高跟鞋行走时步态的同步测试,比较分析几种情况下的运动学和动力学参数。结果(1)随着鞋跟的增高,步速、步长、步频以及下肢关节角度都减小;(2)随着鞋跟的增高,支撑期、双支撑期占步态周期百分比增大,摆动期占步态周期百分比减小;(3)随着鞋跟增高,足前掌压力峰值越来越大,足前部和足中部的冲量所占相对百分比值也越大;(4)行走时的步态特征不仅与鞋跟高度有关,还与鞋跟的粗细有关。结论穿高跟鞋行走极易造成足部疲劳、疼痛甚至损伤,或造成足的发育畸形。

Objective To study the effect of different high-heel shoes on the gait of young females and provide some theoretical basis in quantity scientifically the design of the high-heel shoes.Methods Normal digital video camera and footscanUSB system were combined and the gaits of 10 young women(average age is 19.2 .42) walking on the flat ground with normal speed with barefoot and wearing four pairs of varying high-heel shoes were tested in order to make comparative analysis on their kinematic and kinetic parameters.Results(1) when the heel height of shoes increases,the stride velocity,the stride length,the stride frequency and the joint angles of the lower limb grow smaller in order to obtain the safe and stable gait;(2) the higher the shoe heel,the larger Percentage of support phase and double support phase accounting for gait cycle,the smaller Percentage of swing accounting for gait cycle;(3) the value of the peak force of forefoot,the percentage of impulse on the forefoot and mid-foot become larger,when the subjects walk wearing the higher heel shoes.(4) The thickness of shoes heel also influences the gait characteristics.Conclusion Walking with the high-heel shoes could cause the foot fatigue,pain and injuries easily or the abnormality of foot growth.