1. Basic Sciences Department, Universitat Internacional de Catalunya, 08195 Barcelona, Spain
2. ACTIUM Functional Anatomy Research Group, Sant Cugat del Vallés, 08195 Barcelona, Spain
3. Department of Kinesiology. California State University, San Bernardino, CA 92407, USA
4. Department of Physiotherapy, Universidad de Vitoria-Gateiz (EUNEIZ), 01013 Gasteiz, Spain