An Adjustment to Estimating Body Fat Percentage with BodPod in a Hispanic Population

Authors

Maria Quezada, The University of Texas Rio Grande ValleyFollow
Yuliana Sanchez-Trinidad, The University of Texas Rio Grande ValleyFollow
Kassandra Reyes, The University of Texas Rio Grande ValleyFollow
Emmanuel Franco, The University of Texas Rio Grande ValleyFollow
Aylin Barrera, The University of Texas Rio Grande ValleyFollow
Allison de la Vina, The University of Texas Rio Grande ValleyFollow
Samuel R. Buchanan, The University of Texas Rio Grande ValleyFollow

Abstract

New equations for estimating body fat percentage are continually being developed for more accurate population-based results. PURPOSE: This study aimed to generate a novel two-compartment model equation for air displacement plethysmography to estimate body fat percentage (PBF) in a Hispanic population. METHODS: 43 adults, aged 18+, were assessed for total body composition using a four-compartment model (4C) with bone mineral content from a Lunar iDXA (GE Healthcare, Madison WI), total body water via the InBody 770 (InBody, Seoul, South Korea), and ADP from a BodPod GS-X (COSMED, Rome, Italy). Participants were instructed to arrive hydrated, with manufacturer suggested clothing, for testing after a minimum 4-hour fast and abstain from exercise for the previous 12 hours. Hydration was assessed before testing using a urine refractometer with an acceptable range between 1.004-1.029. 4C PBF was calculated with the Fuller equation embedded in the BodPod software. A paired-samples t-test was used to compare 4C to the 2C from BodPod. Stepwise multiple linear regression was used to estimate PBF with 4C PBF as the independent variable and weight (kg), height (cm), body volume(L) (BV), body density (kg/L), and PBF from two-compartment (2C) were assessed as potential predictors. Tests for collinearity were performed, and all statistical analyses were conducted using SPSS v28 (IBM Corporation, New York, USA) and alpha was set at 0.05. RESULTS: The t-test showed a significant difference between 4C and 2C (pCONCLUSION: PBF from a two-compartment BodPod was significantly lower than the generally preferred 4C PBF. The equation generated shows that for an adult Hispanic population, adjustments made be made to 2C with the inclusion of height and body volume. Additional sampling will further refine the equation and validation with a with a separate sample will be needed before finalizing the equation.

Recommended Citation

Quezada, Maria; Sanchez-Trinidad, Yuliana; Reyes, Kassandra; Franco, Emmanuel; Barrera, Aylin; de la Vina, Allison; and Buchanan, Samuel R. (2025) "An Adjustment to Estimating Body Fat Percentage with BodPod in a Hispanic Population," International Journal of Exercise Science: Conference Proceedings: Vol. 2: Iss. 17, Article 112.
Available at: https://digitalcommons.wku.edu/ijesab/vol2/iss17/112