• Maria Izabel Feltrin, GalloRubneide Barreto SilvaRBS0000-0001-9953-0260MSc, PhD. Professor, Department of Prevention and Rehabilitation in Physical Therapy, Universidade Federal do Paraná (UFPR), Curitiba (PR), Brazil., Elisa Gabardo Lima, Nayara Helena Gomes Bertoncini, Jordana Barbosa da Silva, Natália Boneti Moreira, and KoreloRaciele Ivandra GuardaRIG0000-0002-6754-098XMSc, PhD. Physiotherapist and Adjunct Professor, Department of Prevention and Rehabilitation in Physical Therapy, Universidade Federal do Paraná (UFPR), Curitiba (PR), Brazil..
• Physiotherapist, Department of Prevention and Rehabilitation in Physical Therapy, Universidade Federal do Paraná (UFPR), Curitiba (PR), Brazil.
• Sao Paulo Med J. 2023 Jan 1; 141 (5): e2022279e2022279.

BackgroundThe Pregnancy Mobility Index (PMI) was developed to assess mobility in pregnant women in the Netherlands. At present, no similar questionnaire is available in Brazil.ObjectiveThe present study aimed to translate, cross-culturally adapt, and evaluate the psychometric properties of a Brazilian PMI.Design And SettingThe present study was a validation study conducted at the Universidade Federal do Paraná and a public maternity ward in Curitiba, Brazil.MethodsText translation and cross-cultural adaptation followed international guidelines. Construct validity, internal consistency, and inter- and intra-rater reliability tests included 97 women. The Pelvic Girdle Questionnaire, Multidimensional Pain Evaluation Scale, Schober's test, and lumbar spine range of motion assessment were administered on the first day. Intra-rater reliability (n = 19) was measured after 15 days. Exploratory factor analysis was performed, and the correlation matrix was analyzed using Pearson's coefficient.ResultsPregnant women (88%) understood the cultural adaptation process. The internal consistency was high (Cronbach's alpha > 0.90), construct validity was moderate, with significant correlation between lumbar spine range of motion (r = 0.283-0.369) and Schober's test (r = -0.314), and high correlation between the Multidimensional Pain Evaluation Scale (r = -0.650 and -0.499) and Pelvic Girdle Questionnaire (r = -0.737). Intra- and inter-rater reliabilities were excellent (intraclass correlation coefficient = 0.932 and 0.990, respectively).ConclusionThe Brazilian version of the PMI was successfully translated with excellent reliability and moderate-to-high construct validity. It is an important tool for assessing mobility in pregnant women.Clinical TrialRBR-789tps (Validation study), https://ensaiosclinicos.gov.br/rg/RBR-789tps.

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