1. 1Faculty of Physical Activity and Sport Sciences, Polytechnic University of Madrid, Address: C/ Ramón y Cajal, nº 11, 28224 Pozuelo de Alarcón, Madrid, Spain, Phone: +34667994837
2. 2Faculty of Physical Activity and Sport Sciences, Polytechnic University of Madrid, Madrid, Spain
3. 3Department of Statistics, California Polytechnic State University, San Luis Obispo, USA