Foot posture is associated with kinematics of the foot during gait: A comparison of normal, planus and cavus feet
Foot posture is associated with kinematics of the foot during gait: A comparison of normal, planus and cavus feet
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DOI：
10.1016/j.gaitpost.2015.03.004
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发表时间：
2015-06-01
期刊：
影响因子：
2.4
通讯作者：
Landorf, Karl B.
中科院分区：
文献类型：
--
作者：
Buldt, Andrew K.;Levinger, Pazit;Landorf, Karl B.
足部姿势的变化与某些下肢损伤的发生有关。然而，这种关系背后的机制尚不清楚。本研究的目的是使用多节段足部模型比较正常、高弓足和扁平足姿势组之间的足部运动学。根据足跖指数、足弓指数和标准化舟骨高度的标准化数据，将97名18-47岁的健康成年人分为正常（n = 37）、高弓足（n = 30）或扁平足（n = 30）。采用五段足模型，测量了以自行选择的速度赤脚行走时后足、中足、前足内侧、前足外侧和大拇趾的三平面运动。测量每个节段的足跟接触角、峰值角、达到峰值角的时间和活动范围。采用单因素方差分析和平均差异的事后分析来比较足部姿势组。与正常和扁平足足姿势组相比，高凸足组表现出独特的运动模式。显著平均差异的效应量很大，与类似研究相当。观察到两组之间的整体足部功能存在三个关键差异：（i）高弓足中后足的正面和横向平面角度改变;（ii）在初始接触和站立中期，高弓足中足运动减少;（iii）在摆动前，扁平足中足正面平面ROM减少。这些发现表明脚的姿势确实影响脚的运动。(C)2015爱思唯尔B. V.保留所有权利。
Variations in foot posture are associated with the development of some lower limb injuries. However, the mechanisms underlying this relationship are unclear. The objective of this study was to compare foot kinematics between normal, pes cavus and pes planus foot posture groups using a multi-segment foot model. Ninety-seven healthy adults, aged 18-47 were classified as either normal (n = 37), pes cavus (n = 30) or pes planus (n = 30) based on normative data for the Foot Posture Index, Arch Index and normalised navicular height. A five segment foot model was used to measure tri-planar motion of the rearfoot, midfoot, medial forefoot, lateral forefoot and hallux during barefoot walking at a self-selected speed. Angle at heel contact, peak angle, time to peak angle and range of motion was measured for each segment. One way ANOVAs with post-hoc analyses of mean differences were used to compare foot posture groups. The pes cavus group demonstrated a distinctive pattern of motion compared to the normal and pes planus foot posture groups. Effect sizes of significant mean differences were large and comparable to similar studies. Three key differences in overall foot function were observed between the groups: (i) altered frontal and transverse plane angles of the rearfoot in the pes cavus foot; (ii) Less midfoot motion in the pes cavus foot during initial contact and midstance; and (iii) reduced midfoot frontal plane ROM in the pes planus foot during pre-swing. These findings indicate that foot posture does influence motion of the foot. (C) 2015 Elsevier B.V. All rights reserved.