CAJ | 학술논문

目的：观察正常步态周期中跖骨头平面足横弓的运动形态，并探讨跖骨头平面足横弓在行走过程中的重要意义。方法：以C臂机观察模拟正常步态周期中跖骨头平面足横弓冠状面的变化形态并以录相机记录，通过视频转换为电脑工作站可以分析的MPEG格式文件。在电脑工作站与C+ +Builder下精确的计时器链接，分析足横弓的变化。结果：得到足横弓塌陷时间与足横弓指数Q；I～Ⅱ跖间角；Ⅰ～Ⅳ跖间角；个体体重等的关系曲线。结论：跖骨头平面存在由5个跖骨头构成的足横弓，以1、5跖骨头为底，2、3跖骨头为顶；步态周期中，由站立相到推离相时，2、3跖骨头渐渐塌陷，负重份额渐增加；足横弓指数Q与足横弓塌陷时间密切相关，Q值增大，则2、3跖骨头塌陷的时间缩短，第2、3跖骨头就越早负重，在整个步态周期中的负重时间延长，导致过度负重，2、3跖骨头下疼痛性胼胝体形成。
목적：관찰정상보태주기중척골두평면족횡궁적운동형태，병탐토척골두평면족횡궁재행주과정중적중요의의。방법：이C비궤관찰모의정상보태주기중척골두평면족횡궁관상면적변화형태병이록상궤기록，통과시빈전환위전뇌공작참가이분석적MPEG격식문건。재전뇌공작참여C+ +Builder하정학적계시기련접，분석족횡궁적변화。결과：득도족횡궁탑함시간여족횡궁지수Q；I～Ⅱ척간각；Ⅰ～Ⅳ척간각；개체체중등적관계곡선。결론：척골두평면존재유5개척골두구성적족횡궁，이1、5척골두위저，2、3척골두위정；보태주기중，유참립상도추리상시，2、3척골두점점탑함，부중빈액점증가；족횡궁지수Q여족횡궁탑함시간밀절상관，Q치증대，칙2、3척골두탑함적시간축단，제2、3척골두취월조부중，재정개보태주기중적부중시간연장，도치과도부중，2、3척골두하동통성변지체형성。
Objective: To study the spatial change of transverse arch in the metatarsal head during a normal walking cycle,demonstrate the significance of transverse arch in normal walking.Method:A modeling gait cycle was obtained under the C-armed machine,the coronal spatial changes of the transverse arch of the metatarsal head were recorded using video tape.On computer workstation,the images from video tape were transformed to MPEG files.A model of the transverse arch was created to analysis the relationship between the transverse arch index-Q and sinking time;between Q and Ⅰ and Ⅱ intermetatarsal angle;Ⅰ and Ⅳ intermetatarsal angle;sinking time and body mass.Result:The date and curves of it were obtained.Conclusion:There was a transverse arch formed by the 5 metatarsal heads.In normal walking,during standing phase to toe-off phase,the 2 and 3 metatarsal heads approach the ground resulting from sinking of the transverse arch.The time of the transverse arch sinking decreases accompanying with the transverse index-Q;the time of transverse arch sinking was earlier than normal and duration was longer.The total force acting on the 2 and (or) 3 metatarsal increased.This may cause disorder of forefoot.