Table 1.

Inclusion and exclusion criteria

Inclusion criteria	Exclusion criteria
1. documented case of COPD,	1. unstable coronary disease,
2. clinical stability pre-study,	2. revelant hemodynamic narrowing of the aortic valve,
3. consent to partake in the study.	3. acute myocarditis or pericarditis,
	4. pacemaker implant, cardioverter-defibrillator implant (ICD), cardiac resynchronization therapy defibrillator implant (CRT),
	5. liver and kidney disease during insufficiency periods,
	6. venous thrombo-embolism,
	7. lack of consent to partake in the study.