1. Nursing Department, Faculty of Nursing, Physiotherapy and Podiatry, Complutense University of Madrid, Madrid, Spain
2. Faculty of Health Sciences, Universidad Rey Juan Carlos, Alcorcon, Spain
3. Department of Nursing, Faculty of Nursing and Podiatry, Frailty and Cognitive Impairment Organized Group (FROG). University de Valencia, Center of Elche, Spain
4. University Center of Plasencia, University of Extremadura, Plasencia, Spain
5. Physiotherapy Department, Faculty of Sport Sciences, European University of Madrid, Villaviciosa de Odón, Madrid, Spain
6. Research, Health and Podiatry Group, Department of Health Sciences, Faculty of Nursing and Podiatry, Universidade da Coruña, Ferrol, Spain