Body composition assessment via air displacement plethysmography in adults and children. We hypothesized that physiologic changes owing to pregnancy could affect the accuracy of predicted tgv and introduce errors into body composition measurements. Mccrory ma gomez td bernauer em molé pa. 453 lohman tg skinfolds and body density and their relation to body fatness. The pea pod is extremely simple to operate with software prompts guiding the operator through each step of the process. Fields da goran mi mccrory ma.
Collins a mccarthy h. Am j clin nutr 2002 75453 467. In the context of a clinical trial of 35 free living non athletic individuals 80 f ages 4069 years bmi 2534 kgm2 we compared body composition measurements utilizing bioelectrical impedance analysis bia and air displacement plethysmography adp. Body composition assessment via air displacement plethysmography in adults and children. Body composition measurements with air displacement plethysmography adp define body volume which must be corrected for thoracic gas volume tgv. Evaluation of a new air displacement plethysmograph for measuring human body composition.
This is mainly attributable to the non invasive test procedure and the lack of technical expertise required compared to the traditional hydrostatic weighing procedure. Bod pod has gained popularity among body composition researchers since its introduction in 1995. Med sci sports exerc 1995 271686 1691. 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 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. 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. Fields da goran mi mccrory ma.
Evaluation of factors determining the precision of body composition measurements by air displacement plethysmography. The pea pod is an air displacement plethysmography adp system using whole body densitometry to determine body composition fat and fat free mass in infants weighing between 1 and 8 kg. Air displacement plethysmography adp also known as whole body air displacement plethysmography is a recognized and scientifically validated densitometric method to measure human body compositionadp 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. A review am j clin nutr 2002. Eur j clin nutr 57 770776 2003.