1 Department of Anatomy and Radiology, Faculty of Health Sciences, GIR Physical Exercise and Aging, Campus Los Pajaritos, University of Valladolid, 42004 Soria, Spain.
2 Department of Biochemistry, Molecular Biology and Physiology, Faculty of Health Sciences, GIR Physical Exercise and Aging, Campus Duques de Soria, University of Valladolid, 42004 Soria, Spain.