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高弓足和正常足在赤足行走过程中的力学特征分析

Mechanical Characteristics of Barefoot Walking of the Individuals with High-arch Feet and Normal-arch Feet
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摘要 研究目的:观察高弓足和正常足在赤足行走过程中的运动学和动力学参数变化,分析高弓足易损伤的原因,为高弓足的康复治疗提供实验依据。研究方法:选取9名高弓足受试者为实验组,10名正常足受试者为对照组。利用Vicon-MX红外摄像系统进行动作捕捉,采集受试者常速行走时髋、膝、踝三大关节的运动学参数,同时利用KISTLER三维测力台采集行走过程中的足-地接触力。研究结果:在行走过程中,高弓足者髋关节在足趾离地时的外展角度小于正常足(P<0.05);在垂直方向上的第二峰值地面反作用力(GRF)两组间差异存在统计学意义(P<0.05),垂直方向的第一、第二峰值GRF和向后方向上的峰值GRF出现的时间均早于正常足(P<0.05)。结论:高弓足与正常足行走时所表现出的差异性可能是造成高弓足易损伤的原因,也反映了它们控制机制的不同。 To observe the kinematics and kinetics parameter variations during barefoot walking of the individuals with high-arch feet and normal-arch feet, analyze the reason why high-arch feet are easy to be injured and to provide experimental basis for the rehabilitation treatment of high-arch feet injuries. Method: Nine subjects with high-arch feet were selected for the experimental group, and another ten subjects with norreal-arch feet were put into the control group. Vicon-MX infrared camera system was used to capture the motions of the subjects during normal walking, and the kinematic parameters such as hip angles, knee angles and ankle angles were collected. KISTLER three dimensional measuring force platform was adopted to collect foot-ground contact force. Result: During the walking, the hip joint abduction angles of the high-arch feet individuals were less than those of the normal feet subjects when the toes were off the ground(P〈0.05). The Difference between the second peak GRF of the vertical direction of the two groups has statistical significance( P〈0.05 ). The first and second peak GRF of the vertical direction and the peak GRF of the backward direction of the experiment group appeared earlier than those of the control group (P〈0.05). Conclusion: The Different characteristics of high-arch feet and normal-arch feet in walking may be the cause why high-arch feet are easy to get injured, and this reflects their different control mechanisms.
出处 《体育科研》 2015年第4期75-79,共5页 Sport Science Research
基金 江苏省哲学社会科学研究规划资助项目(2013SJB890016)
关键词 高弓足 地面反作用力 运动学 high-arch feet ground reaction force kinematics
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参考文献17

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