Introduction: Patients with a history of COVID‑19 are characterized by a deteriorated level of cardiorespiratory fitness (CRF). The COVID‑19 rehabilitation program of the National Health Fund (NHF) was developed and financed by the public insurer in Poland to help convalescents return to full health.
Objectives: We aimed to evaluate the effectiveness of cardiopulmonary rehabilitation (CR) after COVID‑19, carried out under the NHF program.