Adp is based on the same principles as the gold standard method of hydrostatic weighing but through a densitometric technique that uses air displacement rather than water immersion. We hypothesized that physiologic changes owing to pregnancy could affect the accuracy of predicted tgv and introduce errors into body composition measurements.
Body Fat Measurement By Air Displacement Plethysmography
Body composition measurements by air displacement plethysmography. There is only one commercially available system for air displacement plethysmography which is known by the trade name bod pod life measurement inc concord ca. Which measurements or estimations are necessary for the calculation of body volume using the air displacement plethysmography methodi. Which method of body composition. To compare body composition parameters estimated by air displacement plethysmography adp to dual x ray absorptiometry dxa in body mass index bmi classifications that include extremely obese bmi400kgm 2 and to examine if differences between analyses were influenced by bmi. Air displacement plethysmography is a recognized and scientifically validated densitometric method to measure human body composition. Accuracy of volume measurements by air displacement plethysmography adp for a range of known volumes was ascertained.
The method is similar underwater hydrostatic weighing but uses air instead of water. Whole body air displacement plethysmography is a method for assessing body fat and lean mass commonly using the bodpod machine. Body composition measurements with air displacement plethysmography adp define body volume which must be corrected for thoracic gas volume tgv. Body surface area. To investigate the effect of body temperature and moisture on body fat fat volume and density by air displacement plethysmography bod pod. Repeated measurements of body volume lung volume and derived body.
Air displacement plethysmography offers several advantages over established reference methods including a quick comfortable automated noninvasive and safe measurement process an. Air displacement plethysmography adp is an age appropriate method for measuring relative fat mass fm in children. Using air displacement technology for measuring and tracking body fat and lean mass. Air displacement plethysmography has been used to measure human body composition for nearly a century but was not developed into a viable system for routine use until the mid 1990s. Air displacement plethysmography adp can allow for the calculation of body composition through a 2 compartment model based on assumptions of value constants for fm and ffm densities. Methods fat body volume and density by the bod pod before bod pod bh and immediately following hydrostatic weighing bod pod fh were performed in 32 healthy females age yr 33 11 weight kg 64 14 height cm 167 7.
However the accuracy of this method has not been evaluated in children aged 5. Air displacement plethysmography is considered a densitometry method of body composition assessment.
Gallery of Body Composition Measurements By Air Displacement Plethysmography
