Question

What type of body composition method uses air displacement to determine body volume and correlates well with underwater weighing to determine body fat mass?.

Answer 1

Plethysmography is the body composition method which uses air displacement to determine the body volume and used to determine body fat mass and volume.

What is Plethysmography?

Air displacement plethysmography (ADP) is a two-component model which assesses mass and volume of a body and therefore an estimation of body density. Body density can be derived from mass divided by the volume of body which can provide the estimation of fat and fat-free mass (FFM).

Plethysmography uses air displacement for the determination of body mass. Plethysmography is commonly conducted using a machine known as the BOD POD that uses the whole body air plethysmography to measure body composition.

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