Methods
pain, FM
This is a randomized parallel trial and a qualitative study developed by the Laboratório de Investigação Fisioterapêutica Clínica, Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional, Faculdade de Medicina, Universidade de Sao Paulo. The study and informed consent terms were both approved by the Research Ethics Committee of the Faculdade de Medicina, Universidade de Sao Paulo, and both were registered at Individuals with FM who were residents in the metropolitan area of São Paulo, Brazil, and referred to the Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional, Faculdade de Medicina, Universidade de Sao Paulo, were enrolled in the study. The inclusion criteria were adults between 30 and 60 years of age, a diagnosis of FM according to the American College of Rheumatology (ACR) 2010 criteria [The sample size calculation (SigmaPlot 12.3 software, Systat Software Inc.) was performed based on the visual analog pain scale data included in a study conducted by the research group [To balance the number of participants in the two groups, block randomization (subjects in blocks of four at a time) was used for the sequence generation process [