A Comparative Study of Body Composition Assessment Techniques: DXA and InBody 270

Main Article Content

Jose R. Garcia
Rithin Manimaleth
Paulina Czartoryski
Paige Napolitano
Haley Watters
Catherine Weber
Alexsandra Alvarez-Beaton
Alexandra C. Nieto
Aysha Patel
Corey Peacock
Jonathan Banks
Jaime Tartar
Jose Antonio


Body composition, assessment, dxa, inbody, fat mass, fat-free mass, lean body mass, exercise


Introduction: The purpose of this study was to compare two common laboratory methods of body composition assessment: dual-energy X-ray absorptiometry (DXA) and the InBody® 270 Body Composition Analyzer.
Methods: Eighty-eight subjects (43 female, 45 male) volunteered for this study. Participants were tested in a controlled laboratory environment (i.e., 3-hour fast, no prior exercise, testing between 1100 and 1700 hours) first on the InBody® 270 followed by the DXA. A paired t-test was used to assess differences between the groups. Statistical significance was established at a p-value < 0.05.
Results: There were statistically significant differences between the DXA and InBody 270 for percent body fat, fat mass and fat-free mass. The DXA had significantly greater fat mass and percent body fat whereas fat-free mass was lower versus the InBody 270.
Conclusion: The Inbody 270 under-predicts fat mass and percent body fat; conversely, it over-predicts fat-free mass.

Abstract 972 | PDF Downloads 540


1. Duren, D. L., Sherwood, R. J., Czerwinski, S. A., Lee, M., Choh, A. C., Siervogel, R. M., & Chumlea, W. C. (2008). Body Composition Methods: Comparisons and Interpretation. Journal of Diabetes Science and Technology, 2(6), 1139–1146. doi: 10.1177/193229680800200623

2.Durnin, J. V. G. A., & Rahaman, M. M. (1967). The assessment of the amount of fat in the human body from measurements of skinfold thickness. British Journal of Nutrition, 21(3), 681–
689. doi: 10.1079/bjn19670070
3. Schmelzle, H. R., & Fusch, C. (2002). Body fat in neonates and young infants: validation of skin fold thickness versus dual-energy X-ray absorptiometry. The American Journal of Clinical Nutrition, 76(5), 1096–1100. doi: 10.1093/ajcn/76.5.1096

4. Chumlea, W. C., & Guo, S. S. (2000). Assessment and Prevalence of Obesity: Application of New Methods to a Major Problem. Endocrine, 13(2), 135–142. doi: 10.1385/endo:13:2:135
5. Shepherd, J. A., Ng, B. K., Sommer, M. J., & Heymsfield, S. B. (2017). Body composition by DXA. Bone, 104, 101–105. doi: 10.1016/j.bone.2017.06.010
6. Okosun, I. S., Chandra, K., Boev, A., Boltri, J. M., Choi, S. T., Parish, D. C., & Dever, G. (2004). Abdominal adiposity in U.S. adults: prevalence and trends, 1960–2000.Preventive Medicine, 39(1), 197–206. doi: 10.1016/j.ypmed.2004.01.023.

Most read articles by the same author(s)

1 2 > >>