High-intensity exercise training induces mitonuclear imbalance and activates the mitochondrial unfolded protein response in the skeletal muscle of aged mice

André V. Cordeiro, Guilherme Francisco Peruca, Renata Rosseto Braga, Rafael S. Brícola, Luciene Lenhare, Vagner Ramon Rodrigues Silva, Chadi Pellegrini Anaruma, Carlos K. Katashima, Bárbara Crisol, Lucas Torres Barbosa, Fernando Moreira Simabuco, Adelino Sánchez Ramos da Silva, Dennys E. Cintra, Leandro Pereira de Moura, José Rodrigo Pauli, Eduardo R. Ropelle