Gülhane Faculty of Health Sciences, Department of Orthotics and Prosthetics, University of Health Sciences, Ankara, Turkey.
Health Sciences, Department of Physiotherapy and Rehabilitation, Süleyman Demirel University, Isparta, Turkey.
Physiother Theory Pract. 2024 Aug;40(8):1724-1730. doi: 10.1080/09593985.2023.2207109. Epub 2023 May 9.
The aim of this study was to translate the English version of the Foot Posture Index (FPI-6) into Turkish and to examine its psychometric properties.
After the forward-backward translation process, the internal consistency and intra - and inter-rater reliability were evaluated by using Cronbach's α and Intraclass Correlation Coefficient (ICC) (two-way random effects model with absolute agreement type), respectively. The agreement between reliability assessments was investigated by the standard error of measurement (SEM) and the minimal detectable change (MDC). Criterion validity was assessed in relationship between the Turkish FPI-6 and Foot Function Index (FFI) and the American Orthopedic Foot and Ankle Society (AOFAS).
The study was completed with 45 patients with foot/ankle problems. The internal consistency (Cronbach's α = 0.85; 0.78, respectively), intra-reliability (ICC = 0.96; 0.94, respectively), and inter-reliability (ICC = 0.93; both of them) of the Turkish version of the FPI-6 were excellent for the dominant and non-dominant lower limb. The SEM was low, and the agreement was considered to have high absolute reliability, as demonstrated by the smallest change in measurement error. The Turkish FPI-6 also had moderate correlations with the FFI and AOFAS ( < .05).
It has been proven that the Turkish FPI-6 is valid and reliable and can be used by Turkish-speaking researchers and clinicians in patients with various foot-ankle problems.
本研究旨在将英文版足姿指数（FPI-6）翻译为土耳其语，并检验其心理测量学特性。
在进行前后翻译后，使用 Cronbach's α 和组内相关系数（ICC）（双向随机效应模型，绝对一致性类型）分别评估内部一致性和组内和组间信度。通过测量误差的标准误差（SEM）和最小可检测变化（MDC）评估可靠性评估之间的一致性。通过土耳其 FPI-6 与足部功能指数（FFI）和美国矫形足踝协会（AOFAS）之间的关系评估标准效度。
本研究共完成了 45 例足部/踝关节问题患者。土耳其版 FPI-6 的内部一致性（Cronbach's α=0.85；分别为 0.78）、组内信度（ICC=0.96；分别为 0.94）和组间信度（ICC=0.93；均为 0.93）对于优势和非优势下肢均为优秀。SEM 较低，测量误差的最小变化表明，一致性被认为具有高度的绝对可靠性。土耳其 FPI-6 与 FFI 和 AOFAS 也具有中度相关性（<0.05）。
已证明土耳其语版 FPI-6 具有有效性和可靠性，可由讲土耳其语的研究人员和临床医生在患有各种足部-踝关节问题的患者中使用。
