人字拖鞋对女性行走时下肢生物力学特征的影响

发布时间：2018-05-06 13:20

本文选题：步态分析 + 人字拖　；参考：《北京体育大学》2017年硕士论文

【摘要】：研究目的:本研究目的在于通过对比青年女性穿细带/宽带人字拖、普通拖鞋及裸足平地行走时的步态特征,分析穿人字拖行走时人体髋、膝、踝关节角度、力矩及地面反作用力的变化,进一步探讨穿人字拖造成下肢损伤的生物力学机制。研究方法:受试者为10名普通健康女大学生,运用8镜头红外高速运动捕捉系统(Motionanalysis,美国,200Hz)和三维测力台(Kistler,瑞士,1000Hz)对受试者分别穿人字拖、普通拖鞋及裸足行走时的运动学和动力学数据进行同步采集。研究结果:足尖离地时刻,与裸足相比穿细带人字拖时踝关节跖屈角度较小;足跟着地时刻,与裸足相比穿细带人字拖时踝关节的内翻角度最大,穿宽带人字拖时次之;与裸足相比穿人字拖时摆动期髋、膝、踝关节屈曲角度峰值较大;穿人字拖时推进力峰值小于穿交叉拖时;与裸足相比,支撑期穿人字拖时前足-中足的内翻角度峰值、背屈角度峰值较大,前足-后足的背屈、内翻、内旋角度峰值较大。研究结论:(1)穿不同拖鞋行走时人体下肢各关节运动表现不同。其中穿人字拖时摆动期的步态变化最明显,主要通过增加髋、膝关节的屈曲角度来完成离地到摆动的整个过程。(2)不同拖鞋对人体下肢各关节的动力学有影响:穿人字拖时推进力较小,蹬伸过程中需要增加髋关节的做功来代偿。(3)不同拖鞋对足部各环节的相对运动角度有影响:穿细带人字拖时足部各环节的相对运动幅度较大,可能会增加胫骨前肌及足背部肌肉的负荷而引起疼痛。
[Abstract]:Objective: the purpose of this study was to analyze the angle of hip, knee and ankle of young women when walking on thin belt / wide band flip-flops, slippers and bare feet. The biomechanical mechanism of lower limb injury caused by flip-flops is further discussed by the change of torque and ground reaction force. Methods: ten normal female college students were used to wear flip-flops using 8-lens infrared high-speed motion analysis system (USA 200Hz) and three-dimensional force measuring platform (Kistler, Switzerland). The kinematics and dynamics data of slippers and bare feet were collected synchronously. The results showed that the angle of ankle metatarsal flexion was smaller when the toe was off the ground than with the bare foot, and when the foot followed the foot, the varus angle of the ankle was the largest when wearing the thin tape flip-flop compared with the bare foot, followed by the wideband flip-flop. Compared with bare foot, the peak of flexion angle of hip, knee and ankle joint in swinging period is higher than that in naked foot; the peak value of propulsive force when wearing flip-flop is smaller than that in cross drag; compared with bare foot, the peak value of forward foot-middle foot's varus angle of forefoot and middle foot in support period is higher than that of naked foot. The peak value of dorsiflexion angle is larger, and the peak value of forefoot-hind foot dorsoflexion, varus and internal rotation angle is larger. Conclusion 1) when walking with different slippers, the movement of lower extremity joints is different. The change of gait in swinging period is the most obvious, mainly by increasing the hip. The flexion angle of the knee joint to complete the whole process from the ground to the swing. 2) different slippers have an effect on the dynamics of the joints of the lower extremity of the human body: the propulsion force is less when wearing flip-flops. Different slippers have an effect on the relative motion angle of each link of foot: the relative motion range of each link of foot is larger when wearing thin tape flip-flops. May increase the tibial anterior muscle and foot back muscle load and cause pain.
【学位授予单位】：北京体育大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G804.6

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