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Author Spotlight: Implementation of BIVA for Analyzing Disease Risk Factors in Patients with Low Body Cell Mass
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通过使用不同的生物阻抗技术来确定人体成分:是否可能达成协议?

Francesco Campa1, A Sampieri1, G Cerullo1

  • 1Department of Biomedical Sciences, University of Padua, Padua, Italy.

Clinical nutrition (Edinburgh, Scotland)
|November 9, 2025
PubMed
概括

生物电阻分析 (BIA) 技术在原始测量中显示出差异,但在使用特定人群方程时,无脂肪质量 (FFM) 估计在设备之间是可比的. 然而,从FFM获得的脂肪质量 (FM) 缺乏个人层面的准确性.

关键词:
BIA BIA 的意思是DXA DXA 是一个脂肪质量 脂肪质量没有脂肪的无脂肪质量.阶段角度 阶段角度

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科学领域:

  • 身体组成分析分析.
  • 生物医学工程 生物医学工程
  • 人类生理学 人类生理学

背景情况:

  • 生物电阻分析 (BIA) 技术在测量电阻 (R),反应率 (Xc) 和相角 (PhA) 中表现出变化.
  • 这种技术变化的影响对人体构成估计,特别是无脂肪质量 (FFM) 和脂肪质量 (FM),仍然不清楚.

研究的目的:

  • 评估FFM估计不同BIA技术与双能X射线吸收度 (DXA) 的一致性.
  • 为了评估BIA衍生FM的协议,从FFM中间接计算,与DXA相比.
  • 调查预测方程在标准化基于BIA的身体成分测量中的作用.

主要方法:

  • 288名成年人 (167名男性,121名女性) 接受了全身手脚和直接细分BIA (50kHz) 测量.
  • 双能X射线吸收计 (DXA) 作为身体组成的参考方法.
  • 用逐步回归来开发和验证FFM的预测方程;使用布兰德-阿尔特曼分析和林的一致性相关系数来评估一致性.

主要成果:

  • 与直接细分BIA (p < 0.001) 相比,脚对手BIA显示R较低,但Xc和PhA较高.
  • 尽管原始参数存在差异,但FFM的估计显示BIA设备之间没有显著的偏差,并且与DXA有很高的一致性.
  • 虽然来自FFM的集团级FM与DXA一致,但个人级评估显示了系统的趋势.

结论:

  • 在不同的BIA技术中可以实现可比的FFM估计,当预测方程在相同的人口和参考方法中导出时.
  • 从FFM间接获得的FM缺乏个人级别的准确性,突出显示了当前BIA应用中精确脂肪质量测定的局限性.