<b>Introduction:</b> pulmonary arterial hypertension compromises not only the cardiorespiratory system, but other systems such as the musculoskeletal and neuromuscular are also limited in their functioning; generating muscle fatigue and dyspnea on small efforts. Pulmonary rehabilitation (PR) as a complementary treatment to pharmacological contributes to the reduction of their symptoms, however, in Colombia these patients are still rarely referred to the RP service. <b>Aim:</b> To determine the changes produced in the variables under study in Colombian patients with pulmonary arterial hipertension who attended a PR program Materials and Methods Cross-sectional study, 40 patients with pulmonary arterial hipertension were admitted who completed an 8 week comprehensive PR program based on the ATS/ERS guidelines. Peak respiratory pressures, distance traveled in 6 minutes and dyspnea. A paired T test was used and a value of p <0.05 was significant. <b>Results:</b> Patients were admitted with a mean age of 73.9 ± 8.9 years, 62.5% male. Table 1 describes the results obtained; there were changes (p <0.001) in Peak respiratory pressures, 6-minute walk test and dyspnea mMRC. <b>Conclusions:</b> PR improved important clinical variables that favorably impact patients with pulmonary arterial hypertension.
