Validity and reliability of the Foot Function Index (FFI) questionnaire Brazilian-Portuguese version

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dc.citation.volume5
dc.contributor.authorMartinez, Bruna Reclusa [UNIFESP]
dc.contributor.authorStaboli, Isabela Maschk [UNIFESP]
dc.contributor.authorKamonseki, Danilo Harudy [UNIFESP]
dc.contributor.authorBudiman-Mak, Elly
dc.contributor.authorYi, Liu Chiao [UNIFESP]
dc.coverageCham
dc.date.accessioned2020-07-31T12:47:32Z
dc.date.available2020-07-31T12:47:32Z
dc.date.issued2016
dc.description.abstractPurpose: To evaluate the validity and reliability of the Foot Function Index (FFI) in its Brazilian Portuguese version. Methods: The validity and reliability of the FFI were tested in 50 volunteers, with plantar fasciitis, metatarsalgia and chronic ankle sprain. The FFI validity process used the Short Form-36 (SF-36) and Foot and Ankle Outcome Score (FAOS) questionnaires. The correlation between FFI, SF-36 and FAOS was done using the Pearson's linear coefficient. The inter and intra-evaluator reliability was ascertained by means of the intraclass correlation coefficient (ICC) and the internal consistency by means of Cronbach's alpha coefficient. The scores were used to assess the standard error measurement (SEM), minimal detectable change (MDC) and ceiling floor and effects. Results: The validity process showed that there were correlations between FFI and the "pain" and "social aspects" subscales of SF-36 and all subscales of FAOS, except for "other symptoms". The Brazilian-Portuguese version of FFI showed excellent intra and interevaluator correlations, with an ICC range of 0.99-0.97 and score reliability that was considered highly satisfactory, with Cronbach's alpha range of 0.80-0.61. The SEMs for inter and intra-evaluator reliability were 1.32 and 1.08, respectively. The MDC was 2.42 (90 % confidence interval). No ceiling and floor effect were detected. Conclusions: The Brazilian-Portuguese version of the FFI questionnaire was found to be a valid and reliable instrument for foot function evaluation, and can be used both in scientific settings and in clinical practice.en
dc.description.affiliationUniv Fed Sao Paulo, Dept Human Movement Sci, Rua Silva Jardim,136, BR-11015020 Santos, SP, Brazil
dc.description.affiliationUS Dept Vet Affairs, Washington, DC USA
dc.description.affiliationUnifespDepartment of Human Movement Sciences, Universidade Federal de São Paulo (UNIFESP), Rua Silva Jardim, 136, Santos, SP, CEP 11015-020, Brazil
dc.description.sourceWeb of Science
dc.format.extent-
dc.identifierhttp://dx.doi.org/10.1186/s40064-016-3507-4
dc.identifier.citationSpringerplus. Cham, v. 5, p. -, 2016.
dc.identifier.doi10.1186/s40064-016-3507-4
dc.identifier.issn2193-1801
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/56891
dc.identifier.wosWOS:000391808300015
dc.language.isoeng
dc.publisherSpringer International Publishing Ag
dc.relation.ispartofSpringerplus
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectFoot diseasesen
dc.subjectQuestionnairesen
dc.subjectOutcome assessmenten
dc.subjectValidation studiesen
dc.titleValidity and reliability of the Foot Function Index (FFI) questionnaire Brazilian-Portuguese versionen
dc.typeinfo:eu-repo/semantics/article
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