Evaluate whether education, a simple doctor's recommendation to increase physical activity in inactive patients, and self-monitoring of physical activity using a pedometer were effective and beneficial for patients with pulmonary arterial hypertension (PAH)

Each patient was educated about the benefits of PhA in PAH on the initial visit. Patients wore pedometers (Omron HJ-321-E) for 2 weeks. After PhA assessment, the patients were contacted by a physician. Patients who walked <5,000 steps per day were recommended to increase PhA, and patients who walked ≥5,000 steps per day were recommended to maintain PhA. Patients wore pedometers for 3 months until their next visit. The primary endpoint was the number of steps after 12 weeks of the study; the secondary endpoint was the 6-minute walk test distance (6MWD), quality of life (SF-36), acceptance of the disease, and anxiety and depression level (HADS).

Inclusion Criteria:

• Age equal to or greater than 18 years
• PAH diagnosis according to current guidelines, confirmed by right heart catheterization
• optimal pharmacological treatment
• stable clinical condition at least 3 months before inclusion in the study
• Informed consent to participate in your own

Exclusion Criteria:

• Age under 18 years
• a type of hypertension other than PAH
• a neurological or orthopedic disease that prevents walking and performing the 6-minute walk test
• mental illness that prevents cooperation and assessment of quality of life survey
• lack of consent to participate in the study