Pulmonary Exacerbation requiring antibiotic treatment or hospitalization during the last 6 weeks

non-pulmonary Exercise impairment (amputation, severe heart disease, etc)

any disease that precludes exercise training

inability to understand the patient information

substance abuse

oxygen requirement of more than 6l O2/min during exercise

The Effect of NIV on QoL and Exercise Capacity in a COPD Exercise Rehabilitation Program