改良式踝足矫形器对膝关节运动角度的影响  

The influence of improved ankle-foot orthotics on the knee joint movement

作　　者：孟殿怀[1] 王彤[1] 李涛[1] 

机构地区：[1]南京医科大学第一附属医院康复医学科,210029

出　　处：《中国康复医学杂志》2007年第4期326-328,共3页Chinese Journal of Rehabilitation Medicine

摘　　要：目的:研究改良式踝足矫形器对膝关节运动角度的影响。方法:研究模型为10例健康大学生(22.6±1.6)岁,采用三维动作分析系统采集自由步行、穿戴标准AFO与穿戴改良式AFO步行时的动态运动数据,观察不同状态下膝、踝关节活动角度的变化。结果:①在6种步行状态下(自由步行、普通AFO、AFO-1、AFO-2、AFO-3、AFO-4),膝关节屈曲角度逐渐增加,且膝关节角度值在支撑相早期、支撑相中期及最大值差异有非常显著性(P<0.01),而支撑相晚期及最小值差异没有显著性意义(P>0.05)。②膝关节角度值在支撑相中期时,自由步行时与穿戴普通AFO及改良式AFO之间差异均有非常显著性意义(P<0.01);同时穿戴普通AFO步行与改良式AFO的后两种状态(AFO-3、AFO-4)之间差异也有显著性意义(P<0.05)。③6种步行状态下踝关节背屈角度最大值逐渐增加,自由步行时与穿戴各种AFO步行之间差异均有非常显著性意义(P<0.01);同时穿戴普通AFO步行与改良式AFO的最后一种状态(AFO-4)之间差异也有显著性意义(P<0.05)。结论:改良式AFO在改变正常人踝关节背伸角度的同时,还可以控制膝关节伸展角度的变化。Objective： To investigate the effect of improved ankle-foot orthotics on knee joint movement. Method： Ten healthy college students were included in this study. 3-D motion analysis system was employed to collect the data of segmental motion on walking. Movement degree of the ankle and knee joint was measured by goniometer. Result： （1）Knee flexion angle of six walking states （free walking, standard AFO walking, improved AFO-1, improved AFO-2, improved AFO-3, improved AFO-4） increased significantly in case of the early standing phase, middle standing phase, and the maximum （P〈0.01）. （2）In case of the middle standing phase, there was significant difference between free walking and AFO walking （P〈0.01）. There was statistic difference between standard AFO walking and the last two states （AFO-3,AFO-4） of modified AFO walking （P〈0.05）. （3）The maximal dorsoflexion angle of ankle joint increased during six walking states. There was significant difference between free walking and AFO walking （P〈0.01）, and between standard AFO walking and the last state of improved AFO （AFO-4） walking too （P〈0.05）. Conclusion： Besides holding ankle joint, improved AFO could control the extension of the knee joint.

关 键 词：踝足矫形器 膝关节 三维动作分析 

分 类 号：R49[医药卫生—康复医学]