Percent body fat estimations in college women using field and laboratory methods: a three-compartment model approach
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BioMed Central
Open Access
Research article
Percent body fat estimations in college women using field and laboratory methods: a three-compartment model approach Jordan R Moon1, Holly R Hull1,2, Sarah E Tobkin1, Masaru Teramoto1, Murat Karabulut1, Michael D Roberts1, Eric D Ryan1, So Jung Kim1, Vincent J Dalbo1, Ashley A Walter1, Abbie T Smith1, Joel T Cramer1 and Jeffrey R Stout*1 Address: 1Department of Health and Exercise Science, University of Oklahoma, Norman, USA and 2Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, USA Email: Jordan R Moon - [email protected]; Holly R Hull - [email protected]; Sarah E Tobkin - [email protected]; Masaru Teramoto - [email protected]; Murat Karabulut - [email protected]; Michael D Roberts - [email protected]; Eric D Ryan - [email protected]; So Jung Kim - [email protected]; Vincent J Dalbo - [email protected]; Ashley A Walter - [email protected]; Abbie T Smith - [email protected]; Joel T Cramer - [email protected]; Jeffrey R Stout* - [email protected] * Corresponding author
Published: 7 November 2007 Journal of the International Society of Sports Nutrition 2007, 4:16 16
doi:10.1186/1550-2783-4-
Received: 30 July 2007 Accepted: 7 November 2007
This article is available from: http://www.jissn.com/content/4/1/16 © 2007 Moon et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract Background: Methods used to estimate percent body fat can be classified as a laboratory or field technique. However, the validity of these methods compared to multiple-compartment models has not been fully established. This investigation sought to determine the validity of field and laboratory methods for estimating percent fat (%fat) in healthy college-age women compared to the Siri threecompartment model (3C). Methods: Thirty Caucasian women (21.1 ± 1.5 yrs; 164.8 ± 4.7 cm; 61.2 ± 6.8 kg) had their %fat estimated by BIA using the BodyGram™ computer program (BIA-AK) and population-specific equation (BIA-Lohman), NIR (Futrex® 6100/XL), a quadratic (SF3JPW) and linear (SF3WB) skinfold equation, air-displacement plethysmography (BP), and hydrostatic weighing (HW). Results: All methods produced acceptable total error (TE) values compared to the 3C model. Both laboratory methods produced similar TE values (HW, TE = 2.4%fat; BP, TE = 2.3%fat) when compared to the 3C model, though a significant constant error (CE) was detected for HW (1.5%fat, p ≤ 0.006). The field methods produced acceptable TE values ranging from 1.8 – 3.8 %fat. BIA-AK (TE = 1.8%fat) yielded the lowest TE among the field methods, while BIA-Lohman (TE = 2.1%fat) and NIR (TE = 2.7%fat) produced lower TE values than both skinfold equations (TE > 2.7%fat) compared to the 3C model. Additionally, the SF3JPW %fat estimation equation resulted in a significant
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