ORIGINAL RESEARCH
FOOT FUNCTION ASSESSMENT AND CROSS-CULTURAL ADAPTATION OF THE FOOT FUNCTION INDEX TO POLISH IN RHEUMATOID ARTHRITIS PATIENTS
1
Department of General Orthopaedics, Musculoskeletal Oncology and Trauma Surgery, Poznan
University of Medical Sciences, Poland
2
The Faculty of Educational Studies, Kazimiera Milanowska College of Education and Therapy,
Poznan, Poland, Poland
3
Center for Early Intervention of the Polish Association for People with Intellectual Disabilities
in Poznan, Poland, Center for Early Intervention of the Polish Association for People with
Intellectual Disabilities in Poznan, Poland, Poland
4
Department of Medical Education, Poznan University of Medical Sciences, Poland
5
Department of Pedagogy and Psychology, University of Security, Poznan, Poland
Submission date: 2022-07-11
Acceptance date: 2022-09-07
Publication date: 2025-11-26
Corresponding author
Jakub Glowacki
Department of General Orthopaedics, Musculoskeletal Oncology and Trauma Surgery, Poznan University of Medical Sciences, Poland
Department of General Orthopaedics, Musculoskeletal Oncology and Trauma Surgery, Poznan University of Medical Sciences, Poland
Issue Rehabil. Orthop. Neurophysiol. Sport Promot. 2022;40(3):17-26
KEYWORDS
TOPICS
ABSTRACT
Aim:
To assess rheumatoid arthritis (RA) patients’ functional status and to perform a cross-cultural adaptation of the original Foot Function Index (FFI) questionnaire to develop the Polish version.
Material and Methods:
Thirty-one female patients with RA participated in this observational study. The patient’s health statuses were evaluated with the culturally adopted FFI (FFI-PL), the Polish version of SF-36 (SF-36-PL), the Polish version of the Beck Depression Inventory (BDI-PL) and a Visual Analogue Scale of foot pain (VAS-pain). Construct validity, internal consistency and criterion validity were calculated for the FFI Polish version after the translation and cross-cultural adaptation process.
Results:
Subsequent analyses showed numerous significant correlations. The FFI-PL total results were moderately correlated with VAS-pain, BDI-PL and SF-36-PL. The FFI-pain results were highly correlated with the FFI total results. The FFI-disability results were correlated with the BDI-PL and SF-36-PL. Surprisingly, no correlations were found in the study group between FFI-PL results and age, working time, or years since diagnosis. Internal consistency of the Polish FFI ranges from 0.996 to 0.998. Test-retest analysis ranged from 0.985 to 0.994.
Conclusions:
The FFI-PL is an effective tool for assessing RA patients’ functional status. The Polish adaptation of the FFI presents good to excellent psychometric properties. Polish researchers and clinicians may use this tool for foot and ankle assessment and monitoring.
To assess rheumatoid arthritis (RA) patients’ functional status and to perform a cross-cultural adaptation of the original Foot Function Index (FFI) questionnaire to develop the Polish version.
Material and Methods:
Thirty-one female patients with RA participated in this observational study. The patient’s health statuses were evaluated with the culturally adopted FFI (FFI-PL), the Polish version of SF-36 (SF-36-PL), the Polish version of the Beck Depression Inventory (BDI-PL) and a Visual Analogue Scale of foot pain (VAS-pain). Construct validity, internal consistency and criterion validity were calculated for the FFI Polish version after the translation and cross-cultural adaptation process.
Results:
Subsequent analyses showed numerous significant correlations. The FFI-PL total results were moderately correlated with VAS-pain, BDI-PL and SF-36-PL. The FFI-pain results were highly correlated with the FFI total results. The FFI-disability results were correlated with the BDI-PL and SF-36-PL. Surprisingly, no correlations were found in the study group between FFI-PL results and age, working time, or years since diagnosis. Internal consistency of the Polish FFI ranges from 0.996 to 0.998. Test-retest analysis ranged from 0.985 to 0.994.
Conclusions:
The FFI-PL is an effective tool for assessing RA patients’ functional status. The Polish adaptation of the FFI presents good to excellent psychometric properties. Polish researchers and clinicians may use this tool for foot and ankle assessment and monitoring.
| ISSN: | 2300-0767 |
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