作为年轻人身体组成标记的原始生物电阻参数的变化:前性队列调查
Gil B Rosa1, Ruben Francisco1, Analiza M Silva1
1Exercise and Health Laboratory, CIPER, Faculdade Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal.
Nutrition (Burbank, Los Angeles County, Calif.)
|January 30, 2026
概括
阶段角度 (PhA) 和其他原始生物电阻分析 (BIA) 参数跟踪年轻人的身体组成变化. 原始BIA参数,如对身高 (RI) 调整的阻力,在评估身体组成动态方面比PhA更有前途.
科学领域:
- 儿科内分泌学 儿科内分泌学
- 身体组成分析 身体成分分析
- 生物电阻分析分析
背景情况:
- 横截面研究表明,原始生物电阻分析 (BIA) 参数对于评估儿童和青少年的身体组成是有价值的.
- 关于原始BIA参数,包括相角 (PhA) 的实用性,用于跟踪年轻人身体组成变化的纵向数据是有限的.
研究的目的:
- 研究1年内原始BIA参数的变化与健康年轻人的各种身体成分变化之间的纵向关联.
- 确定这些关联是否因性别和青春期发育阶段 (峰值身高速度 - - PHV) 而有所不同.
主要方法:
- 这是一项为期一年的前性队列研究,涉及562名健康,典型发育的年轻人 (51.6%是女性).
- 原始BIA参数使用相位敏感的50kHzBIA设备进行测量.
- 使用双能X射线吸收度 (DXA) 和相关模型评估身体成分.
- 用多个线性回归分析来检查BIA参数变化与身体组成之间的关联,按性别和PHV阶段分层.
主要成果:
- 阶段角 (PhA) 与脂肪相关成分,无脂肪质量,细胞外水,液体,固体,矿物质和肌肉组织在女性和大多数男性成分的变化有积极的关联.
- 对于PhA的关联在男性中更强烈,在两性中,在高峰后的高度速度 (PHV) 阶段.
- 其他原始BIA参数,包括耐力调整到身高 (RI),平行电容反应率调整到身高 (XcpI) 和电容 (Cap),对身体组成变化的解释能力比PhA更高,特别是在男性和PHV后阶段.
结论:
- 阶段角 (PhA) 是年轻人身体组成动态的适度标志物,在男性和青少年 (PHV后) 中具有更大的效用.
- 原始BIA参数,特别是RI,XcpI和Cap,为评估性别和青少年发育阶段的身体组成变化提供了重大潜力.
- 这些发现突显了特定原始BIA参数在儿科患者的纵向身体组成监测中的价值.
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