The influence of foot orthoses on foot mobility magnitude and arch height index in adults with flexible flat feet
The influence of foot orthoses on foot mobility magnitude and arch height index in adults with flexible flat feet
复制标题
足矫形器对成人柔性扁平足足部活动度及足弓高度指数的影响
DOI：
--
复制
发表时间：
2015
影响因子：
1.5
通讯作者：
S. Curran
中科院分区：
文献类型：
--
作者：
Roghaye Sheykhi;H. Saeedi;B. Farahmand;M. Kamyab;M. Kamali;H. Gholizadeh;Amir A Derayatifar;S. Curran
背景：弹性扁平足是指内侧纵弓高度的降低，可能发生于异常的足内旋。足部矫形器被认为可以纠正和控制过度内旋并提高脚弓高度。目的：比较三种矫形器对扁平足患者的足活动度和足弓高度指数的即时影响。研究设计：准实验研究。方法：在加州大学生物力学实验室（UCBL）的三种不同的足部矫形器条件下，评估了20名柔性扁平足参与者（平均年龄= 23.2 ± 3岁）的背弓高度、中足宽度、足部活动度和足弓高度指数。结果：在半刚性矫形器的条件下，在冠状面中足弓活动度为90%的情况下，显示了最大中足宽度。在90%负重时，半刚性矫形器的平均足部活动度最高，刚性矫形器（UCBL）的平均足部活动度最低。软矫形器导致足部活动度介于刚性矫形器和半刚性矫形器之间。UCBL矫形器的平均足弓高度指数最高，半刚性矫形器的平均足弓高度指数最低。结论：由于其刚性结构和较长的内外侧壁，UCBL矫形器似乎限制了足部活动度。因此，有必要使矫形器，促进足部活动在正常范围内的足弓。未来的研究应解决动态活动的脚与使用各种类型的足矫形器。临床相关性虽然有许多研究集中在扁平足和足部矫形器的使用，但其作用机制仍不清楚。本研究探讨足部活动度及足部矫形器的影响，并显示应根据足部活动度选择更刚性的足部矫形器。
Background: Flexible flat foot is described as a reduction in the height of the medial longitudinal arch and may occur from abnormal foot pronation. A foot orthosis is thought to modify and control excessive pronation and improve arch height. Objective: To compare the immediate effect of three types of orthoses on foot mobility and the arch height index in subjects with flexible flat feet. Study design: A quasi-experimental study. Method: The dorsal arch height, midfoot width, foot mobility and arch height index were assessed in 20 participants with flexible flat feet (mean age = 23.2 ± 3 years) for three different foot orthosis conditions: soft, semi-rigid and rigid University of California Biomechanics Laboratory (UCBL). Results: Maximum midfoot width at 90% with arch mobility in the coronal plane was shown in the semi-rigid orthosis condition. The semi-rigid orthosis resulted in the highest mean foot mobility in 90% of weight bearing, and the rigid orthosis (UCBL) had the lowest mean foot mobility. The soft orthosis resulted in foot mobility between that of the rigid and the semi-rigid orthosis. UCBL orthosis showed the highest arch height index, and the semi-rigid orthosis showed the lowest mean arch height index. Conclusion: Due to its rigid structure and long medial–lateral walls, the UCBL orthosis appears to limit foot mobility. Therefore, it is necessary to make an orthosis that facilitates foot mobility in the normal range of the foot arch. Future studies should address the dynamic mobility of the foot with using various types of foot orthoses. Clinical relevance Although there are many studies focussed on flat foot and the use of foot orthoses, the mechanism of action is still unclear. This study explored foot mobility and the influence of foot orthoses and showed that a more rigid foot orthosis should be selected based on foot mobility.