1. Pediatric Pulmonology Division, Postgraduate Program in Health Sciences and Postgraduate Program in Public Health, Faculty of MedicineFederal University of Rio GrandeRio Grande Rio Grande do Sul Brazil
2. Physical Therapy DivisionAnhanguera College of PelotasPelotas Rio Grande do Sul Brazil
3. Department of Physical Therapy and RehabilitationFederal University of Santa MariaSanta Maria Rio Grande do Sul Brazil