在运动员中使用身体体积和水分的替代解决方案的快速四模型
Tiago R Silva1,2, Rui Poínhos1,3, Luís B Sardinha2
1Faculty of Nutrition and Food Sciences, University of Porto, Porto, Portugal.
概括
这项研究验证了在运动员中使用生物电阻谱学 (BIS) 的快速四个部分 (4C) 身体组成模型. 这些更快的方法准确地估计身体脂肪,为复杂的4C标准模型提供了切实可行的替代方案.
科学领域:
- 运动科学 运动科学 运动科学
- 人体生理学 人体生理学
- 身体组成分析 身体成分分析
背景情况:
- 标准四部分 (4C) 模型是身体组成评估的黄金标准,但在许多情况下是复杂和不切实际的.
- 双能X射线吸收度 (DXA) 是广泛使用的,但通常是2C或3C模型的一部分.
- 需要准确和实用的身体组成模型,特别是在体育科学和表现方面.
研究的目的:
- 为了外部验证DXA衍生的身体体积 (BV) 方程.
- 评估快速4C模型的准确性,这些模型用生物电阻谱学 (BIS) 取代稀释总体体水 (TBW).
- 在运动员队伍中评估这些快速模型.
主要方法:
- 验证了DXA衍生体积方程 (DXA-BVSilva) 与空气位移囊学 (ADP) 相比.
- 在115名运动员中评估了使用DXA用于骨矿物质含量,AVP用于BV和BIS用于TBW的快速4C模型.
- 从快速4C模型与标准4C模型的脂肪质量 (FM) 估计值进行比较.
主要成果:
- 与ADP相比,DXA衍生的BV方程可靠地估计了身体体积.
- 使用BIS用于TBW的快速4C模型 (4CTBWBIS,4C BVSilvaTBWBIS,4C BVHeymsfieldTBWBIS) 提供了准确的脂肪质量估计.
- 与标准4C模型相比,这些快速模型显示出很小的,不显著的差异,并且与标准4C模型相比,与比例偏差无关,达成一致的界限很小,只有95%.
结论:
- 结合BIS的快速4C模型为运动员的身体组成评估提供了实用和准确的替代方案.
- 这些经过验证的模型可以在4C标准模型不可行的环境中实现.
- 这些发现支持在体育营养,体育科学和研究中使用这些先进模型,超越传统的2C和3C模型.
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