Having a diagnosis of Stage 2-3 COPD according to the following clinical diagnostic criteria according to the American Thoracic and European Respiratory Societies (ATS-ERS).
Having been using the same medications for the last 4 weeks
Being over 18 years of age
Not having any diagnosed chronic disease
Not being a smoker
You may not be if
Patients with severe comorbid diseases, unstable coronary artery disease, collagen vascular diseases and requiring high-flow oxygen therapy (˃ 3-4 L\\min).
Presence of any vascular problem that may affect lower extremity muscle oxygenation
Presence of another respiratory system disease other than COPD
Patients who have had an acute COPD exacerbation in the last 4 weeks
Patients experiencing COPD exacerbations during the study protocol
Presence of fatty tissue or scar tissue at the measurement points, which may impair the measurement quality.
Have already participated in another clinical trial within the last 30 days that may affect the results of the study.
