Five-component model validation of reference, laboratory and field methods of body composition assessment
Five-component model validation of reference, laboratory and field methods of body composition assessment
复制标题
DOI：
10.1017/s0007114520003578
复制
发表时间：
2021-06-14
影响因子：
3.6
通讯作者：
Tinsley, Grant M.
中科院分区：
文献类型：
--
作者：
Tinsley, Grant M.
本研究报告了几种常用技术估算的体脂率（BF%）与五组分（5C）模型标准的有效性。采用双能x线吸收仪（DXA）、空气置换容积脉搏波仪（ADP）、多种生物阻抗技术和光学扫描对170名健康成人进行评估。输出还用于生成标准5C模型、三组分和四组分模型（3C; 4C）的多个变体以及基于人体测量的BF%估计。进行线性回归、Bland-Altman分析和等价检验，并评估恒定误差（CE）、总误差（TE）、估计误差（SEE）和决定系数（R(2)）。主要发现有：(1)使用相同身体体积（BV）和总身体水分（TBW）估算的5C、4C和3C模型之间的差异可以忽略不计（CE）
This study reports the validity of body fat percentage (BF%) estimates from several commonly employed techniques as compared with a five-component (5C) model criterion. Healthy adults (n 170) were assessed by dual-energy X-ray absorptiometry (DXA), air displacement plethysmography (ADP), multiple bioimpedance techniques and optical scanning. Output was also used to produce a criterion 5C model, multiple variants of three- and four-component models (3C; 4C) and anthropometry-based BF% estimates. Linear regression, Bland-Altman analysis and equivalence testing were performed alongside evaluation of the constant error (CE), total error (TE), se of the estimate (SEE) and coefficient of determination (R (2)). The major findings were (1) differences between 5C, 4C and 3C models utilising the same body volume (BV) and total body water (TBW) estimates are negligible (CE