In this prospective cohort study the investigators aim to evaluate the effect of pulmonary rehabilitation on sleep quality. Disturbed sleep is associated with, frequent exacerbations, increase in the severity of disease and increased mortality in chronic obstructive pulmonary disease (COPD). Sleep quality is a good predictor of quality of life in patients with stable COPD. However, there has been little investigation into non-pharmacological methods to improve sleep quality in patients with COPD and heart failure. It is also uncertain, how long the beneficial effects of cardio-pulmonary rehabilitation on sleep quality, if any, usually last. Due to lack of robust data, the investigators sought to find the effect of cardio-pulmonary rehabilitation on sleep quality.
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Improvement in Sleep Quality Using Pittsburgh Sleep Quality Index
Timeframe: 8 weeks on average