1. Department of Physical Activity and Sport Science, Faculty of Education and Sport, University of Deusto, 48007 Bilbao, Spain
2. Comprehensive Care Group for Patients with Chronic Diseases, Biocruces Bizkaia Health Research Institute, Plaza de Cruces 12, 48903 Barakaldo, Spain
3. Radiation Oncology Department, Biocruces Bizkaia Health Research Institute, Cruces University Hospital, Osakidetza, 48903 Barakaldo, Spain
4. Department of Surgery, Radiology and Physical Medicine, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain