CAJ | 학술논문

目的：旨在分析习惯着鞋跑步者与习惯裸足跑步者跑步的运动学和动力学特征,并结合习惯着鞋跑步者内收的大脚趾与习惯裸足跑步者外展的大脚趾的足部形态差异进行功能分析。方法：18名习惯裸足跑步者与20名习惯着鞋跑步者参与跑步测试（控制速度3.0±0.2m/s）。Vicon三维红外运动分析系统用于收集两组受试者跑步测试时下肢的运动学数据;Kistler三维测力台用于收集受试者跑步过程中右腿的地面反作用力;Novel Pedar-X鞋垫式足底压力测量系统用于获得足部特定解剖区域的足底压力（峰值压强,接触面积及压强-时间积分）数据,重点探究两组受试者外展及内收的大脚趾跑步时的功能。结果：由于两组受试者跑步时落地方式的差异,两组受试者在落地时踝关节屈伸的角度存在较为显著的差异。习惯着鞋跑步者跑步时垂直负荷增长率高于习惯裸足跑步者,这与下肢及足部常见损伤相联系。习惯裸足跑步者跑步时,足部前掌区的峰值压强和压力-时间积分高于习惯着鞋跑步者,习惯着鞋跑步者大脚趾区由于鞋底的支撑作用表现出较大的峰值压强及压强-时间积分,相应的前足内外侧的峰值压强和压强-时间积分也明显低于习惯裸足跑步者。结合两组受试者在踝关节冠状面内的角度变化,习惯裸足跑步者蹬离地面时外翻角度高于习惯着鞋跑步者。结论：习惯着鞋跑步者跑步时足部蹬离阶段大脚趾由于鞋底支撑作用能够降低聚集于前足的负荷,减少足部筋膜炎、跖骨疲劳性骨折的风险;针对脚趾蹬地时抓地弹射机能的训练能够提高跑步的运动表现。
목적：지재분석습관착혜포보자여습관라족포보자포보적운동학화동역학특정,병결합습관착혜포보자내수적대각지여습관라족포보자외전적대각지적족부형태차이진행공능분석。방법：18명습관라족포보자여20명습관착혜포보자삼여포보측시（공제속도3.0±0.2m/s）。Vicon삼유홍외운동분석계통용우수집량조수시자포보측시시하지적운동학수거;Kistler삼유측력태용우수집수시자포보과정중우퇴적지면반작용력;Novel Pedar-X혜점식족저압력측량계통용우획득족부특정해부구역적족저압력（봉치압강,접촉면적급압강-시간적분）수거,중점탐구량조수시자외전급내수적대각지포보시적공능。결과：유우량조수시자포보시락지방식적차이,량조수시자재락지시과관절굴신적각도존재교위현저적차이。습관착혜포보자포보시수직부하증장솔고우습관라족포보자,저여하지급족부상견손상상련계。습관라족포보자포보시,족부전장구적봉치압강화압력-시간적분고우습관착혜포보자,습관착혜포보자대각지구유우혜저적지탱작용표현출교대적봉치압강급압강-시간적분,상응적전족내외측적봉치압강화압강-시간적분야명현저우습관라족포보자。결합량조수시자재과관절관상면내적각도변화,습관라족포보자등리지면시외번각도고우습관착혜포보자。결론：습관착혜포보자포보시족부등리계단대각지유우혜저지탱작용능구강저취집우전족적부하,감소족부근막염、척골피로성골절적풍험;침대각지등지시조지탄사궤능적훈련능구제고포보적운동표현。
Objective：This study aims to investigate the kinematics and kinetics of habitually unshod runners and habitually shod runners running. The foot morphological characteristics of abducted hallux of habitually shod runners and adducted hallux of habitually unshod runners is linked in the analysis morphology-related functions while running. Methods.. A total of 18 habitually unshod runners and 20 habitually shod runners participated in the running test controlling the speed of 3.0±0.2m/s. The Vicon three dimension motion analysis system was taken to capture the kinematics of lower extremity while running test. Kistler was employed to record the ground reaction force of running under shod and unshod conditions. The Novel Pedar-X insole plantar pressure measurement system was utilized to collect the plantar pressure （peak pressure, contact area and pressure-time integral） in specific anatomical areas. The function of abducted and adducted hallux is analyzed through the comparison of plantar pressure parameters and kinematical results. Results：Owing to the different landing patterns of two participant groups, the dorsiflexion and plantarflexion angle of ankle while landing show significant difference. The Vertical Loading Rate of habitually shod runners is obviously higher than that of ha- bitually unshod runners, which is linked with common injuries to the lower extremities. The peak pressure and pressure-time integral of habitually unshod runners＇ running are significantly higher than habitually shod runners. As to the hallux part of habitually shod runners, the peak pressure and pressure-time integral are higher owing to the supporting from outsole, thus reducing the loading in the medial forefoot and lateral forefoot. Combining the inversion and eversion of ankle in the coronal plane while pushing off, habitually unshod runners show a bigger eversion angle than habitually shod runners. Conclusion：In the pushing-off phase, the supporting from outsole to the hallux of the habitually shod runners could reduce the loading to the forefoot, thus lowering down the incidence of foot disorders, like plantar fasciitis and metatarsal fatigue fracture, but also improving the running performance through training of pushing- off sling-like action.