Combined Effects of Blow Bottle Technique and Percussion Technique in COPD Patients

When you blow through a tube into water in a bottle, the pressure in the airways increases. This opens up the passageways between bronchioles, allowing air to flow behind the mucus and push it into the larger airways. This way, it will be easy to remove the mucus by coughing or huffing.

"Percussion technique should be performed for about 30 seconds and simultaneously with no more than three or four lower thoracic expansion exercises.~* Do this for a total of 10 breaths,~* Perform two huffs, and~* Cough.~* Close their mouth around the tube and exhale slightly forcefully for 3 seconds to produce bubbles. Such exhalations were conducted in two sets of ten, with a five-minute pause in between. For each subject, a fresh, disposable tube and bottle were utilized"