What is a BOD POD and how does it work?
The BOD POD is a fast, safe, and easy-to-use tool for measuring body composition, using air displacement technology. Developed with grant funding from the National Institutes of Health, the BOD POD technology is based on the same whole-body measurement principle as underwater weighing (the “dunk tank”). The BOD POD measures the volume of air a person's body displaces while sitting inside a comfortable chamber, rather than measuring how much water their body displaces when dunked in a tank.

Since it is based on the same whole-body measurement principle as underwater weighing, the BOD POD first measures the subject's weight and volume. From these measurements, whole-body density is determined. Using these data, body fat and lean mass can then be calculated. 

The BOD POD itself is a dual-chambered, fiberglass plethysmograph that determines body volume by measuring changes in pressure within a closed chamber. The front, or test chamber, has a seat that forms a common wall separating it from the rear, or reference chamber. The BOD POD also has a large window, providing the subject with a wide field of view, making the test a comfortable and enjoyable one.

Testing conditions
The BOD POD takes very accurate measurements of your weight and volume (size of your body). Anything that isn’t “you” – including clothing, jewelry, or eyeglasses – can produce inaccurate results. This is why it’s VERY IMPORTANT to wear minimal, form-fitting clothing such as a lycra or Spandex® swimsuit. Single-layer compression shorts and/or lightweight jog bras are also acceptable clothing (without padding or wires). 

A swim cap must also be worn to compress any air pockets within the hair.

Do not eat or drink immediately prior to a BOD POD test.

How long does a BOD POD test take?
A BOD POD test takes about 10 minutes.

Who makes the BOD POD?
The BOD POD is manufactured by Life Measurement Inc (www.bodpod.com) in California.