轻度拇外翻人群不同运动强度下的下肢运动生物力学研究
发布时间：2018-12-12 03:26
【摘要】：研究目的:通过对轻度拇外翻人群在正常行走与慢跑这两种不同运动强度状态下的下肢关节的运动学方面和足底压力进行分析研究,探寻拇外翻足与正常足之间,在不同运动强度下的下肢关节的角度运动学变化以及足底压力分布的差异。为拇外翻的后续更深入的研究做铺垫,争取从更好的角度诠释拇外翻的形成机制,根据拇外翻的步态分析,为拇外翻人群在临床上的治疗以及日常生活中的锻炼提供更科学化的建议。研究方法:本研究选取10名正常足受试者作为控制组,10名轻度拇外翻足受试者为拇外翻组,所有受试者均为宁波大学女生,脚的尺码均为37EUR。让受试者穿实验用鞋在15米跑道上分别进行正常行走与慢跑的实验,对比分析不同运动强度状态下,轻度拇外翻人群和正常人群的下肢运动生物力学变化。(1)运动学实验。本实验通过Vicon三维运动捕捉系统,采集受试者两种运动强度状态下的髋、膝、踝关节的角度变化,对比这些变化在不同组不同强度状态下的差异性。(2)足底压力分布实验。本实验通过德国Novel公司的Emedpedar系列鞋垫式足底压力测量系统及其分析软件,得出受试者在两种运动强度状态下的足底动力学参数:峰值压强(PP)、峰值压力(MF)和压力-时间积分值(FTI),对比这些值在不同组不同运动强度下的差异性。研究结果:(1)运动学实验。正常行走状态下,拇外翻组和正常组相比,髋关节在冠状面上的外展角度非常显著性减小,在水平面上,处于旋外状态,而正常组处于旋内状态;膝关节在冠状面上处于内收状态,而正常组处于外展状态;踝关节在水平面上,步态周期的触地阶段,处于外展状态,与正常组也存在着明显差别。慢跑运动状态下,两组在正常行走状态下,下肢关节运动角度变化趋势存在的差异,并没有发生本质上的改变,即随着运动强度的增加,两组的慢跑模式与正常行走模式基本相同,没有发生具有统计学意义的差异性改变。(2)足底压力分布研究的实验。通过足底压力分布的数据得出,拇外翻组的足底主要承受力的区域发生了外移,即主要承受区域为其他脚趾、跖骨区域外侧、足中部外侧以及足后跟区域,并且各区域受力时,与地面的接触时间延长。结论:拇外翻组的足底承受压力的区域外移后,形成特有的足-地接触模式,即足底外侧成为主要的支撑方式,而这种支撑方式,导致踝关节触地瞬间处于外展状态,进而在脚趾离地,下肢处于摆动阶段时,使膝关节发生了明显的内收变化,髋关节处于旋外状态,与正常组完全不同的运动模式,这或许也是拇外翻人群做出的一种适应性调整。
[Abstract]:Objective: to study the kinematics and plantar pressure of lower extremity joints of mild hallux valgus under two different intensity states of normal walking and jogging, and to explore the relationship between hallux valgus and normal feet. The angular kinematics of lower extremity joints and the difference of plantar pressure distribution under different exercise intensity. To lay the groundwork for the further study of hallux valgus, and try to explain the formation mechanism of hallux valgus from a better angle, according to the gait analysis of hallux valgus, To provide more scientific advice for the treatment of hallux valgus and daily life exercise. Methods: in this study, 10 normal subjects were selected as control group, 10 subjects with mild hallux valgus as hallux valgus group. All subjects were female students of Ningbo University and the foot size was 37 EURs. The subjects were asked to walk and jog on a 15-meter track with their shoes. The biomechanical changes of lower extremities in mild hallux valgus and normal subjects were compared and analyzed under different exercise intensity. (1) Kinematics experiment. In this experiment, the angle changes of hip, knee and ankle were collected by Vicon three-dimensional motion capture system. (2) plantar pressure distribution experiment. In this experiment, through the Emedpedar series insoles pressure measurement system and its analysis software of Novel Company in Germany, we obtained the plantar dynamic parameters of the subjects under two kinds of motion intensity: peak pressure (PP),. Peak pressure (MF) and pressure-time integral (FTI),) were compared between these values under different motion intensity. The results are as follows: (1) Kinematics experiment. Under normal walking condition, the abduction angle of hip joint on the coronal plane was significantly decreased in the hallux valgus group compared with the normal group, and in the horizontal plane, the circumflex state was in the normal group, while the normal group was in the pronation state. The knee joint is in adductive state on the coronal plane, while in the abduction state in the normal group; the ankle joint is in the horizontal plane, the gait cycle is in the outreaching state at the ground contact stage, and there is a significant difference between the knee joint and the normal group. Under the condition of jogging, the change trend of the angle of lower extremity joint movement in the two groups under normal walking condition has not changed substantially, that is, with the increase of exercise intensity, The jogging pattern of the two groups was basically the same as the normal walking pattern, and there was no statistically significant difference. (2) the study of foot pressure distribution. According to the data of plantar pressure distribution, the main bearing area of the plantar in hallux valgus group is outward, that is, the main bearing area is other toes, the lateral area of metatarsal bone, the lateral part of the middle part of foot and the region of heel, and when each region is subjected to force, Extended contact time with the ground. Conclusion: after the area of plantar pressure in hallux valgus group moves out, a unique foot-ground contact mode is formed, that is, the lateral plantar is the main support mode, and this support mode results in the ankle joint being in an abduction state at the moment of touching the ground. Then when the toes were off the ground and the lower limbs were swinging, the knee joint had obvious adductive changes, and the hip joint was in an extracircumflex state, which was completely different from the normal group. This may also be an adaptive adjustment made by the hallux valgus crowd.
【学位授予单位】：宁波大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R687.3
本文编号：2373812
[Abstract]:Objective: to study the kinematics and plantar pressure of lower extremity joints of mild hallux valgus under two different intensity states of normal walking and jogging, and to explore the relationship between hallux valgus and normal feet. The angular kinematics of lower extremity joints and the difference of plantar pressure distribution under different exercise intensity. To lay the groundwork for the further study of hallux valgus, and try to explain the formation mechanism of hallux valgus from a better angle, according to the gait analysis of hallux valgus, To provide more scientific advice for the treatment of hallux valgus and daily life exercise. Methods: in this study, 10 normal subjects were selected as control group, 10 subjects with mild hallux valgus as hallux valgus group. All subjects were female students of Ningbo University and the foot size was 37 EURs. The subjects were asked to walk and jog on a 15-meter track with their shoes. The biomechanical changes of lower extremities in mild hallux valgus and normal subjects were compared and analyzed under different exercise intensity. (1) Kinematics experiment. In this experiment, the angle changes of hip, knee and ankle were collected by Vicon three-dimensional motion capture system. (2) plantar pressure distribution experiment. In this experiment, through the Emedpedar series insoles pressure measurement system and its analysis software of Novel Company in Germany, we obtained the plantar dynamic parameters of the subjects under two kinds of motion intensity: peak pressure (PP),. Peak pressure (MF) and pressure-time integral (FTI),) were compared between these values under different motion intensity. The results are as follows: (1) Kinematics experiment. Under normal walking condition, the abduction angle of hip joint on the coronal plane was significantly decreased in the hallux valgus group compared with the normal group, and in the horizontal plane, the circumflex state was in the normal group, while the normal group was in the pronation state. The knee joint is in adductive state on the coronal plane, while in the abduction state in the normal group; the ankle joint is in the horizontal plane, the gait cycle is in the outreaching state at the ground contact stage, and there is a significant difference between the knee joint and the normal group. Under the condition of jogging, the change trend of the angle of lower extremity joint movement in the two groups under normal walking condition has not changed substantially, that is, with the increase of exercise intensity, The jogging pattern of the two groups was basically the same as the normal walking pattern, and there was no statistically significant difference. (2) the study of foot pressure distribution. According to the data of plantar pressure distribution, the main bearing area of the plantar in hallux valgus group is outward, that is, the main bearing area is other toes, the lateral area of metatarsal bone, the lateral part of the middle part of foot and the region of heel, and when each region is subjected to force, Extended contact time with the ground. Conclusion: after the area of plantar pressure in hallux valgus group moves out, a unique foot-ground contact mode is formed, that is, the lateral plantar is the main support mode, and this support mode results in the ankle joint being in an abduction state at the moment of touching the ground. Then when the toes were off the ground and the lower limbs were swinging, the knee joint had obvious adductive changes, and the hip joint was in an extracircumflex state, which was completely different from the normal group. This may also be an adaptive adjustment made by the hallux valgus crowd.
【学位授予单位】：宁波大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R687.3
【参考文献】
相关期刊论文 前1条
1 张伟,黄耀添,王军;拇外翻病人的静、动态前足底压力测定[J];武警医学院学报;2001年02期
，本文编号：2373812
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