Department of Nursing, Faculty of Medicine and Nursing, University of Córdoba, Avd Menéndez Pidal No/No, 14004 Córdoba, Spain.
Department of Occupational Safety and Health, Córdoba City Hall, Huerto de San Pedro el Real, 1, 14003 Córdoba, Spain.
Int J Environ Res Public Health. 2019 Nov 15;16(22):4529. doi: 10.3390/ijerph16224529.
Many methods for measuring body fat have been developed, but applications in clinical settings are limited. For this reason, researchers have tried to identify different formulas for its estimation but most of are hard to incorporate into daily work due to the variability in population and difficulty of use. The aim of this study was to develop and validate a new equation for the simplified estimation of body fat using the Clínica Universidad de Navarra - Body Adiposity Estimator (CUN-BAE) as a reference.
This research was conducted in two phases. In the first, the new body fat estimation equation was developed. The developed equation was validated in the second phase. Pearson's linear correlation, raw and adjusted linear regressions, the intraclass correlation coefficient, and Bland-Altman graphs were used.
The variables that best adjusted the body fat percentage were age, sex, and the Napierian logarithm of Body Mass Index (LnBMI), forming the Equation Córdoba for Estimation of Body Fat (ECORE-BF) model. In its validation, the model presented correlation values of 0.994, an intraclass correlation coefficient of 0.960, with the Bland-Altman graph indicating means differences of 1.82 with respect to the estimation with the CUN-BAE. Nevertheless, although the aim was to simplify the CUN-BAE, the main limitation of this study is that a gold standard, such as air displacement plethysmography (ADP) or dual-energy X-ray absorptiometry (DXA), was not used.
The proposed equation (ECORE-BF) simplified the CUN-BAE and provided a precise method, respecting the principle of parsimony, for the calculation of body fat.
已经开发出许多测量体脂的方法，但在临床环境中的应用有限。因此，研究人员试图确定不同的公式来估算体脂，但由于人群的变异性和使用难度，大多数公式难以纳入日常工作中。本研究旨在开发和验证一种新的方程，用于使用 Clínica Universidad de Navarra - Body Adiposity Estimator (CUN-BAE) 作为参考来简化体脂估算。
本研究分两个阶段进行。在第一阶段，开发了新的体脂估算方程。在第二阶段验证了开发的方程。使用 Pearson 线性相关、原始和调整线性回归、组内相关系数和 Bland-Altman 图。
最佳调整体脂百分比的变量是年龄、性别和 Body Mass Index（BMI）的 Napierian 对数（LnBMI），形成了 Cordoba 体脂估算方程（ECORE-BF）模型。在验证中，该模型的相关值为 0.994，组内相关系数为 0.960，Bland-Altman 图显示与 CUN-BAE 估算的平均差异为 1.82。尽管目的是简化 CUN-BAE，但本研究的主要局限性是没有使用金标准，例如空气置换体积描记法（ADP）或双能 X 射线吸收法（DXA）。
提出的方程（ECORE-BF）简化了 CUN-BAE，并提供了一种精确的方法，尊重简约原则，用于计算体脂。
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