基于身体质量指数的方程用于估计III级肥胖症妇女的身体组成
João Felipe Machado1, Flávia Lúcia Conceição2, João Régis Carneiro3
1JM: Educação Física. Ph.D. Ciências. Laboratório de Biociência, Movimento Humano (LABIMH), Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro (UFRJ). Rio de Janeiro, Brasil. prof.jfmachado@gmail.com Universidade Federal do Rio de Janeiro Movimento Humano (LABIMH) Hospital Universitário Clementino Fraga Filho Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil.
Revista de salud publica (Bogota, Colombia)
|March 18, 2025
概括
预测方程可以使用身体质量指数 (BMI) 估计严重肥胖妇女的身体组成. 用身高的平方进行规范化的方程显示,身体脂肪质量和骨肌肉质量的准确性更好,但不是身体脂肪百分比.
科学领域:
- 肥胖问题研究研究
- 身体组成分析 身体成分分析
- 预测建模预测建模
背景情况:
- 准确的身体成分评估对于管理严重肥胖至关重要.
- 现有的预测模型在特定人群中可能存在局限性.
研究的目的:
- 开发和验证预测方程,以估计III级肥胖妇女的身体组成.
- 使用体重指数 (BMI) 作为主要预测变量.
主要方法:
- 一项涉及104名患有III级肥胖症的患者的横截面研究.
- 随机划分成方程和验证组用于回归模型开发和测试.
- 生物阻抗分析 (InBody® 230) 用于测量体脂肪量 (BFM),体脂肪百分比 (BFP),骨肌量 (SMM),无脂肪量 (FFM) 和总体水量 (TBW).
主要成果:
- 多项式回归方程证明最适合预测身体组成.
- 用高度平方规范化的方程通常产生更高的确定系数 (r2),表明更好的预测精度 (0.510.94).
- 身体脂肪百分比 (BFP) 和身体脂肪百分比指数 (BFPI) 与BMI的相关性很低 (r2 0.110.29),这表明预测能力有限.
结论:
- 基于BMI的预测模型可以有效地估计患有III级肥胖症的女性的身体组成,不包括BFP和BFPI.
- 高度规范化的方程是优越的预测器.
- 对于具有极端BMI值 (4076 kg/m2) 的个体,建议谨慎,因为估计偏差可能会增加.
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