Body Composition Assessment in Male and Female Bodybuilders: A 4-Compartment Model Comparison of Dual-Energy X-Ray Absorptiometry and Impedance-Based Devices.

Journal of Strength and Conditioning Research
Austin J GraybealGrant M Tinsley

Abstract

Graybeal, AJ, Moore, ML, Cruz, MR, and Tinsley, GM. Body composition assessment in male and female bodybuilders: a 4-compartment model comparison of dual-energy x-ray absorptiometry and impedance-based devices. J Strength Cond Res 34(6): 1676-1689, 2020-The purpose of this study was to examine the group and individual accuracy of body composition estimates obtained from multicompartment models, dual-energy x-ray absorptiometry (DXA), and several impedance-based devices in male and female bodybuilders. Twenty-seven male (n = 17; 4-compartment [4C] model fat-free mass index [FFMI]: 25.1 ± 1.8 kg·m; 4C body fat: 11.8 ± 4.4%) and female (n = 10; 4C FFMI: 18.3 ± 1.4 kg·m; 4C body fat: 19.7 ± 4.9%) bodybuilders underwent duplicate assessments using DXA, bioimpedance spectroscopy (BIS), electrical impedance myography (EIM), and 3 bioelectrical impedance analysis (BIA) devices. In addition to utilizing standard output, multicompartment models were generated. For each method, body fat %, FFM, and fat mass were compared with the reference 4C model for the evaluation of group and individual errors. The 3-compartment model with a BIS body water estimate produced the lowest standard error of the estimate, total error (TE), and 95% limits of...Continue Reading

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Citations

Jul 4, 2019·The American Journal of Clinical Nutrition·Grant M TinsleyMegan R Cruz
Oct 1, 2019·American Journal of Human Biology : the Official Journal of the Human Biology Council·Madeline A CzeckDonald R Dengel
Sep 22, 2018·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Grant M TinsleyM Lane Moore
Feb 6, 2020·American Journal of Human Biology : the Official Journal of the Human Biology Council·Takashi AbeJeremy P Loenneke
May 30, 2019·International Journal of Sport Nutrition and Exercise Metabolism·Nura AlwanKevin Enright
Mar 23, 2021·Clinical Physiology and Functional Imaging·Gabrielle J BrewerAbbie E Smith-Ryan
Jun 24, 2020·Journal of Clinical Densitometry : the Official Journal of the International Society for Clinical Densitometry·Grant M TinsleyBrian T Adamson
May 1, 2021·Journal of Functional Morphology and Kinesiology·Robert W SmithGrant M Tinsley
Jan 22, 2021·The Journal of Sports Medicine and Physical Fitness·Majid M Syed-AbdulJason D Wagganer
Feb 16, 2021·Medicine and Science in Sports and Exercise·Jackson J PeosAmanda Sainsbury

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