In pulmonary rehabilitation, the 6-Minute Walk Test (6MWT) is essential to assess the effects of the program on patients' health. Current guidelines don't recommend to perform two 6MWT at the end of pulmonary rehabilitation. However, a more recent study shows that two 6MWT should be performed at the end of the program to accurately and reliably assess patients' capacities.

The aim of this study is to compare the results of two tests performed at the end of the program by COPD patients to find out whether there is a benefit of performing two 6MWT at the end of pulmonary rehabilitation.

Inclusion Criteria:

• Patient with stage 2 to 4 (A to D) COPD
• Admitted to pulmonary rehabilitation unit of CH des Pays de Morlaix (CHPM)
• To follow a pulmonary rehabilitation program (4 weeks)
• Patient aged 18 or over
• Patient able to formulate his non-opposition to participate in the study

Exclusion Criteria:

• Contraindication to perform the 6-Minute Walk Test
• Patient under legal protection
• Refusal of participation

COPD patients admitted for pulmonary rehabilitation program in pulmonary rehabilitation unit of CH des Pays de Morlaix (CHPM).

All collected data that underlie results in a publication

Data will be available beginning three years and ending fifteen years following the final study report completion

Data access requests will be reviewed by the internal committee of Brest UH. Requestors will be required to sign and complete a data access agreement.