Automated Oxygen Titration During Walking in Patients With COPD

"At day 1 the patients will perform Walk A and Walk B in a random order:~Walk A: The patients will perform a Endurance Shuttle Walk Tests (ESWT) with the fixed-dose (FOT). O2matic will monitor pulse rate and saturation continuously during the test.~Walk B: The patients will perform a Endurance Shuttle Walk Tests (ESWT) with a variable oxygen flow (AOT) depending on the saturation. O2matic will monitor pulse rate and saturation continuously during the test, and adjust oxygen flow depending on the saturation.~At day 2 the patients will perform two 6 minutes walking (MWT) test in random order:~Walk C: A 6 MWT with FOT Walk D; A 6 MWT with AOT"