Body Composition Assessment of NFL Combine Athletes: DXA, BIS and Bod Pod

Main Article Content

Jose Antonio
Victoria Burgess
Pete Bommarito
Cara Axelrod
Anya Ellerbroek
Tobin Silver
Corey Peacock


body fat, Measurement, Methods


Introduction: There are multiple methods of assessing body composition. The purpose of this study was to evaluate different body composition methods (i.e., Bod Pod, DXA and BIS) in college football players who were preparing for the NFL Combine.

Methods: College football players (mean ± SD: 22.5 ±1.0 yr.; 184.7 ± 8.3 cm height; 101.7 ± 15.3 kg body weight) came to the laboratory for body composition assessment via dual-energy X-ray absorptiometry (DXA), Bod Pod and bioimpedance spectroscopy (BIS). In addition, total body water (TBW) was measured via BIS (Impedimed).

Results: There no significant differences in measures of lean body mass (LBM) (p=0.1314), fat mass (FM) (p=0.2772) or percentage body fat (BF%) (p=0.3816) between the three methods.

Conclusions: There were no significant differences between the DXA, Bod Pod or BIS vis a vis LBM, FM or BF%. Thus at least for group measures, all are feasible methods for assessing body composition.

Abstract 569 | PDF Downloads 254


1. Vescovi, J.D., et al., Evaluation of the BOD POD for estimating percentage body fat in a heterogeneous group of adult humans. Eur J Appl Physiol, 2001. 85(3-4): p. 326-32.

2. Fields, D.A., G.R. Hunter, and M.I. Goran, Validation of the BOD POD with hydrostatic weighing: influence of body clothing. Int J Obes Relat Metab Disord, 2000. 24(2): p. 200-5.

3. Flakoll, P.J., et al., Bioelectrical impedance vs air displacement plethysmography and dual-energy X-ray absorptiometry to determine body composition in patients with end- stage renal disease. JPEN J Parenter Enteral Nutr, 2004. 28(1): p. 13-21.

4. Frisard, M.I., F.L. Greenway, and J.P. Delany, Comparison of methods to assess body composition changes during a period of weight loss. Obes Res, 2005. 13(5): p. 845-54.

5. Tinsley, G.M., Reliability and agreement between DXA-derived body volumes and their usage in 4-compartment body composition models produced from DXA and BIA values. J Sports Sci, 2018. 36(11): p. 1235-1240.

6. Hew-Butler, T., et al., Comparison of body composition techniques before and after a 161-km ultramarathon using DXA, BIS and BIA. Int J Sports Med, 2015. 36(2): p. 169-74.

7. Lee, S.Y. and D. Gallagher, Assessment methods in human body composition. Curr Opin Clin Nutr Metab Care, 2008. 11(5): p. 566-72.

8. Nana, A., Slater, G., Steward, A., & Burke, L., Methodology Review: Using Dual-Energy X-Ray Absorptiometry (DXA) for the Assessment of Body Composition in Athletes and Active People. International Journal of Sports Nutrition and Exercise Metabolism, 2014. 24: p. 198-215.

Most read articles by the same author(s)

1 2 > >>