1. Department of Nursing, Molecular Biology and Physiology, Universidad de Valladolid, Soria, Spain.
2. Faculty of Sports Sciences, Universidad Europea de Madrid, Madrid, Spain.
3. Departamento de Enfermería y Fisioterapia, Facultad de Ciencias de la Salud, Universidad de León, León, Spain.
4. Department of Surgery, Ophthalmology, Otorhinolaryngology and Physiotherapy, Molecular Biology and Physiology, Universidad de Valladolid, Soria, Spain.
5. Department of Physical Education, Sport and Human Movement, Universidad Autónoma de Madrid, Madrid, Spain.
6. Department of Biochemistry, Molecular Biology and Physiology, Universidad de Valladolid, Soria, Spain.