Effect of Body Composition Methodology on Heritability Estimation of Body Fatness.

ABSTRACT: Heritability estimates of human body fatness vary widely and the contribution of body composition methodology to this variability is unknown. The effect of body composition methodology on estimations of genetic and environmental contributions to body fatness variation was examined in 78 adult male and female monozygotic twin pairs reared apart or together. Body composition was assessed by six methods - body mass index (BMI), dual energy x-ray absorptiometry (DXA), underwater weighing (UWW), total body water (TBW), bioelectric impedance (BIA), and skinfold thickness. Body fatness was expressed as percent body fat, fat mass, and fat mass/height² to assess the effect of body fatness expression on heritability estimates. Model-fitting multivariate analyses were used to assess the ge

SUBMITTER: Elder SJ 

PROVIDER: S-EPMC4110980 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature