Tradução e avaliação das propriedades de medida da versão brasileira do Quality FM para crianças e adolescentes com paralisia cerebral

Abstract

Improvement in the quality of movement in children and adolescents with cerebral palsy (CP) can be an important basis for the acquisition of new gross motor skills and needs to be investigated and measured in a quantitative and standardized way. The objective of this dissertation study was to translate into Brazilian Portuguese and to assess the properties of measurement of face validity, reliability and discriminant validity of the Quality FM (QFM) for children and adolescents with cerebral palsy (CP) at the Gross Motor Function Classification System levels. (GMFCS) I, II and III. The translation of the QFM was conducted in four stages: translation, synthesis of translation, back-translation and review of the translation by a committee of experts. Face validity was assessed with 19 physiotherapists who judged the relevance and comprehensiveness of the test items. Test-retest reliability was tested with 30 children and adolescents with CP over an interval of 7 to 30 days. Inter-rater reliability was tested with 50 children and adolescents with CP, by two examiners. Discriminant validity was tested with 86 children and adolescents with CP. Test-retest reliability showed good to excellent rates (0.86 to 0.98). Inter-rater reliability presented excellent rates (0.96 to 0.99). All QFM attributes were able to discriminate participants by GMFCS level (p<0.0001). The results of this study indicate that the translated version of the QFM has acceptable measurement properties and is a tool for Brazilian professionals to assess the quality of movement in children and adolescents with CP.