1. Public Health Research Center, National School of Public Health, Nova University of Lisbon, Avenida Padre Cruz, 1600-560 Lisbon, Portugal; and Comprehensive Health Research Centre, Nova University of Lisbon, Lisbon, Portugal
2. Department of Physical Therapy, School of Health Care, Polytechnic Institute of Setúbal, Setúbal, Portugal; and Comprehensive Health Research Centre, Nova University of Lisbon
3. Department of Physical Therapy, School of Health Care, Polytechnic Institute of Setúbal