Patients will be selected in two ways:~Intervention group: patients with COPD or idiopathic fibrosis following rehabilitation program in our center, who meet the inclusion criteria will be invited to participate in the survey and answer the questionnaires during the first week and again eight weeks after the start of the rehabilitation program.~Control group: patients with COPD or idiopathic fibrosis who do not perform any regular physical activity will be invited to participate in the survey and answer the questionnaires.~The questionnaires are validated and the time allowed for completion is 45 minutes. The questionnaires will assess sleep quality, anxiety and symptoms of depression.
The study looked at whether regular physical activity can influence sleep duration, sleep quality and/or anxiety in patients with chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF).~The link between exercise and sleep has already been observed in the literature, but the impact of exercise on sleep is poorly understood. The question is how important is the influence of regular physical activity on sleep, anxiety and depression in patients with COPD or IPF.