Chronic airflow obstruction : FEV1/FVC \< 0.7, FEV1 of 30 to 80% predicted, after bronchodilation;
You may not be if
Inability to perform a cycling exercise;
Diagnosed of one of more comorbidities that may limit exercise tolerance : cardiovascular, metabolic, endocrine, gastrointestinal, renal, neurological or rheumatologically disease;
Recent COPD exacerbation (\< 3 months);
Recent cancer;
A daily dose of Prednisone \> 10 mg;
Hypoxemia at rest or during exercise: PaO2 \< 60 mmHg or SpO2 ≤ 88%;
Body mass index \> 30 kg/m²;
Pregnancy;
Skinfold at intercostal or vastus lateralis muscle \> 1.5 cm.