Urban-training Intervention in Pulmonary Hypertension (UTHAP)

1\) one-to-one motivational interview for a maximum of 1h; 2) exercise following a dossier containing various maps of Urban Training walking trails, previously used in patients with COPD with a recommendation of doing a minimum of 1 circuit/day; or in case of living faraway from Urban Training walking trails, the instructions will be to walk at least 30 minutes per day ⩾5 days per week, at a pace reaching a dyspnoea Borg scale score of 4 -6; 3) a FitBit Inspire (FitBit, San Francisco, United States) to obtain direct feedback on the step count and intensity of PA; and 4) a motivational follow-up visit, in group, once per month during the follow-up period.