1. Department of Physiotherapy, European University of Madrid, 28670 Madrid, Spain
2. InHeFis Research Group, Instituto Asturiano de Investigación Sanitaria (ISPA), 33011 Oviedo, Spain
3. Department of Physiotherapy, University of Murcia, 30100 Murcia, Spain
4. Department of Surgery and Medical-Surgical Specialties, University of Oviedo, 33003 Oviedo, Spain
5. Department of Physiotherapy, Catholic University San Antonio-UCAM, 30107 Murcia, Spain