\\ \\ **J. Arturo Abraldes Valeiras**\\ Department of Physical Activity and Sports\\ Faculty of Sports Sciences. University of Murcia\\ Calle Argentina, s/n\\ 30720 - Santiago de la Ribera. Murcia. Spain\\ Office Number: 3.2\\ Telephone Number: +34 968 39 86 78\\ Fax Number: +34 968 39 86 72\\ www.um.es/f-ccdeporte/\\ E-mail: abraldes@um.es\\