Chest Physical Therapy (CPT) is the practice of clapping children on the back to clear mucus out of the lungs.
FairView (a Minnesotan non-profit health site) recommends it for chest infections.
Chest physical therapy (CPT) is a method for clearing mucus out of the lungs. Keeping the lungs clear helps your child breathe easier. CPT involves 3 main steps:
- Putting your child in certain positions
- Clapping on the body
- Having your child cough
University of Michigan Health department recommends "Postural Drainage and Percussion" to help children with Cystic Fibrosis.
Postural drainage and chest percussion (PD & P) is one of several airway clearance techniques that help clear mucus from your child's lungs.
This practice seems to be more or less spread depending on the country. For example, I have rarely heard of it in Italy or the USA, but it seems to be quite popular in France.
Mechanically it does not seem to make any sense to me: the density and viscosity of the mucus seems to be too large to allow for its displacement through percussion.
Are there studies supporting its use?