Consistency of a mobile body composition trailer: a novel portable laboratory assessment?. (12th January 2016)

• Record Type: Journal Article
• Authors: Gerstner, Gena R.; Ryan, Eric D.; Kleinberg, Craig R.; Tweedell, Andrew J.; Smith‐Ryan, Abbie E.
• Is Part Of: Clinical physiology and functional imaging. Volume 37:Number 5(2017:Sep.)
• Page Start: 544
• Page End: 547
• Publication Date: 2016-01-12
• Subjects: air‐displacement plethysmography -- BOD POD® -- firefighter -- multicompartment model -- obesity -- percent body fat; Physiology, Pathological -- Periodicals; Diagnostic imaging -- Periodicals; 612
• DOI: 10.1111/cpf.12340
• Languages: English
• ISSNs: 1475-0961

Abstract

Summary: Objective: The purpose of this investigation was to (i) assess the test–retest reliability and minimum difference (MD) values of air‐displacement plethysmography (ADP) and the Siri 3‐compartment (3‐C) model in a mobile trailer, and (ii) identify any environmental fluctuations in the trailer. Methods: percent body fat (%BF) was examined in 22 firefighters on two separate days in a climate‐controlled mobile trailer using ADP. Total body water was examined in a subset of participants ( n = 12) using bioelectrical impedance spectroscopy (BIS) to determine %BF using Siri's 3‐C model. Results: There were no differences in environmental measures ( P ≥0·138), %BF for ADP ( P = 0·276), or %BF for the Siri 3‐C model ( P = 0·382) between day 1 and day 2. Intraclass correlation coefficient and standard error of measurement values for ADP and the Siri 3‐C model were 0·978 and 1·3% and 0·986 and 0·6%, respectively. The MD values were 3·6% and 1·7%, respectively. Conclusions: These findings indicate that ADP can reliably determine %BF when transported in a climate‐controlled mobile trailer. Additional accuracy is achievable with the Siri 3‐C model, providing an attractive and promising method to measure body composition in larger scale community‐based settings.