Sánchez Rodríguez Raquel, Martínez Nova Alfonso, Escamilla Martínez Elena, Gómez Martín Beatriz, Martínez Quintana Rodrigo, Pedrera Zamorano Juan Diego
Department of Nursing, University of Extremadura, Centro Universitario de Plasencia, Plasencia, Spain.
J Am Podiatr Med Assoc. 2013 Sep-Oct;103(5):400-4. doi: 10.7547/1030400.
The Foot Posture Index (FPI) quantifies foot posture on the basis of six criteria. Although the male foot is longer and broader than the female foot, limited evidence exists about the differences in foot posture between the sexes and which are its biological and anthropometric determinants. We sought to evaluate possible sex differences in the FPI and the determinants influencing foot posture.
In 400 individuals (201 men and 199 women), the FPI was determined in the static bipedal stance and relaxed position. The FPI was obtained as the sum of the scores (-2, -1, 0, 1, or 2) given to each of six criteria. A multiple regression model was constructed of the overall FPI against age, weight, height, body mass index, and foot size.
The mean ± SD FPI was 2.0 ± 4.3 overall, 1.6 ± 4.5 for men, and 2.4 ± 4.1 for women, with the difference being nonsignificant (P = .142). The neutral posture was the most frequent (57.3%). A greater proportion of women had neutral and pronated feet, and a greater proportion of men had supinated and highly supinated feet, with the differences being nonsignificant (P = .143). Foot size, height, and body mass index together explained 10.1% of the overall FPI value (P < .001).
The most frequent posture was neutral with a certain degree of pronation, with no differences in FPI values between men and women. Participants with larger foot sizes had higher FPI values, whereas taller and heavier participants had lower FPI values.
足姿势指数（FPI）基于六个标准对足部姿势进行量化。尽管男性的脚比女性的脚更长更宽，但关于两性足部姿势差异及其生物学和人体测量学决定因素的证据有限。我们试图评估FPI中可能存在的性别差异以及影响足部姿势的决定因素。
在400名个体（201名男性和199名女性）中，在静态双足站立和放松姿势下测定FPI。FPI是通过对六个标准中的每一个给予的分数（-2、-1、0、1或2）相加得到的。构建了一个多元回归模型，将总体FPI与年龄、体重、身高、体重指数和脚尺寸进行对比。
总体上，FPI的平均值±标准差为2.0±4.3，男性为1.6±4.5，女性为2.4±4.1，差异无统计学意义（P = 0.142）。中立姿势最为常见（57.3%）。女性中具有中立和内旋足部的比例更高，男性中具有外旋和高度外旋足部的比例更高，差异无统计学意义（P = 0.143）。脚尺寸、身高和体重指数共同解释了总体FPI值的10.1%（P < 0.001）。
最常见的姿势是带有一定程度内旋的中立姿势，男性和女性的FPI值没有差异。脚尺寸较大的参与者FPI值较高，而身高较高和体重较重的参与者FPI值较低。
