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

This trial hopes to demonstrate the effect of 4 weeks of outpatient exercise rehabilitation on COPD patients. In particular the effect on:

- the amount of daily physical activity
- Quality of life
- The 6-minute walk distance
- Time to exacerbation

and compare it to the effect of 4 weeks of outpatients rehabilitation with Noninvasive Ventilation as an adjunct therapy.