Inclusion Criteria:

• Age between 45 and 80 years
• Confirmed diagnosis of chronic obstructive pulmonary disease, GOLD stage II to IV
• Stable condition (no exacerbation in the last month prior to participation)
• Referred to a pulmonary rehabilitation program
• With or without oxygen during exercise
• No pulmonary rehabilitation program in the last 12 months prior to participation
• Living at home with another adult present during exercise sessions
• Affiliated with a health insurance system
• Able to read and understand the information letter and sign the consent form

Non-inclusion criteria:

• Referred to pulmonary rehabilitation before lung cancer surgery
• Referred to pulmonary rehabilitation before lung volume reduction surgery scheduled within the next four months
• Visual, cognitive, or auditory impairments incompatible with participation in a tele-pulmonary rehabilitation program
• Orthopedic, neurological, cardiovascular, or neuromuscular conditions limiting exercise training on a cycle ergometer
• Active cancer
• Unable to provide informed consent
• Under legal guardianship or curatorship
• Pregnant or breastfeeding women

Exclusion Criterion:

• Withdrawal of consent