The principle of measurement of the commonly used plethysmographs relies on detecting changes in box pressure in combination with either changes of mouth pressure or with flow rate under defined breathing conditions. These signals are evaluated in order to determine static lung volumes and
What does a plethysmograph measure?
Body plethysmography is a pulmonary (lung-related) function test that determines how much air is in your lungs after you take in a deep breath. It also measures the amount of air left in your lungs after you exhale as much as you can.
Is plethysmography non invasive?
Barometric whole-body plethysmography
The major benefit of this noninvasive technique is that repetitive measurements can be done in the same mouse.
