1 Department of Physical Education and Sport, University of León, León, Spain; Performance and Health Group, Department of Physical Education and Sport, University of A Coruna, A Coruna, Spain. Electronic address: lsanr@unileon.es.
2 Ophthalmological Research Foundation, Fernández-Vega University Institute, Oviedo, Spain.
3 Department of Systems Biology, University of Alcalá, Alcalá de Henares, Spain.
4 Department of Neurology, Zealand University Hospital, Roskilde, Denmark.
5 Performance and Health Group, Department of Physical Education and Sport, University of A Coruña, A Coruña, Spain.
6 Department of Functional Biology, University of Oviedo, Oviedo, Spain.
7 Spanish Confederation of Persons with Physical and Organic Disability (COCEMFE), Asturias, Spain.