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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/48489

Title: The Role of Body Adiposity Index in Determining Body Fat Percentage in Colombian Adults with Overweight or Obesity
Authors: Ramírez-Vélez, Robinson
Correa-Bautista, Jorge Enrique
González-Ruiz, Katherine
Tordecilla-Sanders, Alejandra
García-Hermoso, Antonio
Schmidt Rio-Valle, Jacqueline
González Jiménez, Emilio
Issue Date: 21-Sep-2017
Abstract: The aim of this study is to investigate the accuracy of body adiposity index (BAI) as a convenient tool for assessing body fat percentage (BF%) in a sample of adults with overweight/obesity using bioelectrical impedance analysis (BIA). The study population was composed of 96 volunteers (60% female, mean age 40.6 ± 7.5 years old). Anthropometric characteristics (body mass index, height, waist-to-height ratio, hip and waist circumference), socioeconomic status, and diet were assessed, and BF% was measured by BIA-BF% and by BAI-BF%. Pearson’s correlation coefficient was used to evaluate the correlation between BAI-BF% and BF% assessed by BIA-BF%, while controlling for potential confounders. The concordance between the BF% measured by both methods was obtained with a paired sample t-test, Lin’s concordance correlation coefficient, and Bland-Altman plot analysis. Overall, the correlation between BF% obtained by BIA-BF% and estimated by BAI-BF% was r = 0.885, p < 0.001, after adjusting for potential confounders (age, socioeconomic status, and diet). Lin’s concordance correlation coefficient was moderate in both sexes. In the men, the paired t-test showed a significant mean difference in BF% between the methods (−5.6 (95% CI −6.4 to −4.8); p < 0.001). In the women, these differences were (−3.6 (95% CI −4.7 to −2.5); p < 0.001). Overall, the bias of the BAI-BF% was −4.8 ± 3.2 BF%; p < 0.001), indicating that the BAI-BF% method significantly underestimated the BF% in comparison with the reference method. In adults with overweight/obesity, the BAI presents low agreement with BF% measured by BIA-BF%; therefore, we conclude that BIA-BF% is not accurate in either sex when body fat percentage levels are low or high. Further studies are necessary to confirm our findings in different ethnic groups.
Sponsorship: This study forms part of the project entitled “High Intensity Interval- vs. Resistance or Combined- Training to Improve Cardiometabolic Health in Overweight Adults: Cardiometabolic HIIT-RT Study ClinicalTrials.gov Identifier: NTC02715063”, funded by the Centre for Studies on Measurement of Physical Activity, School of Medicine and Health Sciences, Universidad del Rosario (Code N° FIUR DN-BG001).
Publisher: MDPI
Keywords: Prediction
Obesity
Adults
Body composition
Validity
URI: http://hdl.handle.net/10481/48489
ISSN: 1660-4601
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Ramírez-Vélez, R.; et al. The Role of Body Adiposity Index in Determining Body Fat Percentage in Colombian Adults with Overweight or Obesity. International Journal of Environmental Research and Public Health, 14(10): 1093 (2017). [http://hdl.handle.net/10481/48489]
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