Moradell, Ana Navarrete-Villanueva, David Fernández-García, Ángel Iván Gusi, Narcis Pérez-Gómez, Jorge González-Gross, Marcela Ara, Ignacio Casajús, José Antonio Gómez-Cabello, Alba Vicente-Rodríguez, Germán Multicomponent training improves the quality of life of older adults at risk of frailty Healthcare (Basel) 10.3390/healthcare11212844 2023 2023