Assessing the reliability and cross-sectional and longitudinal validity of fifteen bioelectrical impedance analysis devices.

ABSTRACT: The purpose of this investigation was to expand upon the limited existing research examining the test-retest reliability, cross-sectional validity and longitudinal validity of a sample of bioelectrical impedance analysis (BIA) devices as compared with a laboratory four-compartment (4C) model. Seventy-three healthy participants aged 19-50 years were assessed by each of fifteen BIA devices, with resulting body fat percentage estimates compared with a 4C model utilising air displacement plethysmography, dual-energy X-ray absorptiometry and bioimpedance spectroscopy. A subset of thirty-seven participants returned for a second visit 12-16 weeks later and were included in an analysis of longitudinal validity. The sample of devices included fourteen consumer-grade and one research-grade model in

SUBMITTER: Siedler MR 

PROVIDER: S-EPMC10404482 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature