Abstract Introduction: Chronic atrial fibrillation (CAF) is the most common sustained arrhythmia in clinical practice associated with significant morbidity and mortality, however, there are few data in the literature on the analysis of functional capacity (FC) and cardiovascular variables (CV) obtained by exercise test (ET). Objective: To evaluate the efficacy and safety of ET in patients with CAF. Methods: Observational, retrospective study with patients with CAF who underwent ET. Were analyzed: FC in METs, hemodynamic behavior (RC and Δ PAS), […]