Mitochondrial remodeling in skeletal muscle underlies exercise-induced reversal of age-associated functional decline in mice and humans. - García-Domínguez E; García-Domínguez C; Cabrera-Alarcón JL; Muñoz-Hernández MDM; Hernansanz-Agustín P; Curtabbi A; Domenech-Fernandez J; Calvo E; Vázquez J; Serrano AL; Muñoz-Cánoves P; Olaso-González G; et al. (Proceedings of the National Academy of Sciences of the United States of America, 2026)