Active Cycle Of Breathing Technique What is active cycle of breathing technique (ACBT)? It is a breathing technique that aids in clearing phlegm from chest. It is performed as a cycle that loosens and moves the phlegm towards your mouth until your chest feels clear. Who needs it? People with lung conditions who produce more phlegm than usual. Secretion retention increases the risk of chest infection. What position should I do ACBT in? Choose a comfortable and relaxed position (Fig. 1) or the specific position as advised by your physiotherapist.
(Fig.1) Sit comfortably in a chair
How long should I do ACBT for? Aim to continue ACBT for 2-3 cycles, ideally until you feel the phlegm has cleared, or until you are tired. How Often Do I Need To Perform? When you are well, do ACBT only once or twice a day. When you have more phlegm, do it more often to keep your chest reasonably clear.