Six Minute Walking Test and Breath-holding
Six Minute Walking Test and Breath-holding
To compare the relationship between breath-hold time and the distance in a Six Minute Walking
 Test in chronic obstructive pulmonary disease population.
Inclusion Criteria:

 -  stable chronic obstructive pulmonary disease

 Exclusion Criteria:

 -  contra-indication for six minutes walking test

 -  difficulty to walk

 -  musculoskeletal disorder