Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia.
Biomed Res Int. 2021 Mar 28;2021:8844356. doi: 10.1155/2021/8844356. eCollection 2021.
The foot posture index (FPI) is a valid, reliable, and multidimensional method for determining foot posture in a wide range of clinical settings. To date, no normative data of healthy young adults in Saudi Arabia have been available for comparison and reference. Hence, this study is aimed at establishing the FPI reference values, gender, and side differences of FPI and their association with anthropometric determinants, balance, functional mobility, and hypermobility.
FPI was assessed in 581 (291 men and 290 women) healthy young adults aged 18-25 years. The FPI range was obtained for both feet as the sum of the scores (-2, -1, 0, 1, and 2) given to each criterion: (-1 to -12) supinated foot, (0 to +5) neutral foot, and (+6 to +12) pronated foot. The study furthermore assessed the balance using a near tandem balance test, functional mobility by stair ascent and descent test, and joint hypermobility via the Beighton scale.
The average FPI score was 2.76 ± 5.23 for all subjects, 2.98 ± 5.02 for men and 2.55 ± 5.43 for women. Neutral foot posture was most frequent in this study (52.9%). A higher proportion of women had pronated (21.0%) and supinated (11.7%) feet than men which were 16.8% and 10.3%, respectively. This study also confirmed that side differences were found to be significant ( value < 0.001), whereas gender differences were significant only in the normal, pronated, and supinated foot groups.
The most common foot posture in both genders was ranged from neutral to slight pronation. We also found a correlation between balance with FPI in the supinated and hypersupinated foot groups, functional mobility with FPI of pronated and supinated foot groups, and joint hypermobility with FPI of the hyperpronated foot group.
足姿态指数（FPI）是一种在广泛的临床环境中确定足姿态的有效、可靠且多维的方法。迄今为止，尚无沙特阿拉伯健康年轻成年人的 FPI 参考值的相关数据可供比较和参考。因此，本研究旨在建立 FPI 参考值、性别和 FPI 的侧别差异及其与人体测量学指标、平衡、功能性移动性和过度活动度的相关性。
对 581 名（291 名男性和 290 名女性）18-25 岁健康年轻成年人进行 FPI 评估。FPI 范围是通过对每个标准的评分（-2、-1、0、1 和 2）求和得出的，范围为 (-1 至-12) 旋前足、(0 至+5) 中立足和 (+6 至+12) 旋后足。该研究还通过近并足平衡测试评估平衡、通过登梯试验评估功能性移动性以及通过 Beighton 量表评估关节过度活动度。
所有受试者的平均 FPI 评分为 2.76±5.23，男性为 2.98±5.02，女性为 2.55±5.43。在本研究中，中立足姿态最为常见（52.9%）。与男性相比，女性的旋后（21.0%）和旋前（11.7%）足比例更高，分别为 16.8%和 10.3%。本研究还证实，侧别差异具有统计学意义（ value < 0.001），而性别差异仅在正常、旋后和旋前足组中具有统计学意义。
两性中最常见的足姿态范围从中立到轻度旋后。我们还发现，在旋前和过度旋前足组中，平衡与 FPI 之间存在相关性，在旋后和旋前足组中，功能性移动性与 FPI 之间存在相关性，在过度旋后足组中，关节过度活动度与 FPI 之间存在相关性。
