1. Post-Graduation Program in Medical Sciences, Medical School, Federal University of Rio Grande do Sul (UFRGS), 90035-903 Porto Alegre, RS, Brazil
2. Research Center, Hospital de Clínicas de Porto Alegre, Federal University of Rio Grande do Sul (UFRGS), 90035-903 Porto Alegre, RS, Brazil
3. Physiotherapy Course, Catholic University of Pelotas (UCPEL), Porto Alegre, RS, Brazil
4. Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170 Porto Alegre, RS, Brazil
5. Lutheran University of Brazil, 92425-900 Canoas, RS, Brazil
6. State University of Rio Grande do Sul Porto Alegre, 90010-191 Porto Alegre, RS, Brazil