Nutrition Science and Everyday Application - beta v 0.1

INDICATORS OF HEALTH: BMI, BODY COMPOSITION, AND METABOLIC HEALTH 387
impacted by exercise, alcohol, and menstrual cycles.
Figure 7.10. BIA hand device.
• Air displacement plethysmography (ADP) – This is a non-invasive, quick tool that
does not take extensive training. It’s more accurate but also more expensive than
BIA. While a person sits inside an enclosed chamber (usually called a Bod Pod),
changes in air pressure are used to determine the amount of air that is displaced
in the test chamber, which can determine body volume. These measurements are
then translated into percent body fat. Hydration status can affect the accuracy of
this test. This test also needs to be conducted in a facility with a Bod Pod, so it is
not as accessible as the skinfold test or the BIA.