手臂周长作为肌肉质量的标记:来自NHANES 1999-2006年的截止值
Jarson P Costa-Pereira1, Carla M Prado2, Steven B Heymsfield3
1Postgraduate Program in Nutrition, Federal University of Pernambuco, Recife, PE, Brazil.
The American journal of clinical nutrition
|September 27, 2025
概括
为评估成年人骨肌肉 (SM) 提出了新的中上臂周长 (MUAC) 切断点. 这些值,以及身体质量指数 (BMI) 的调整,改善了SM评估,特别是在超重个体中.
科学领域:
- 人类测量和身体构成
- 临床营养学 临床营养学
- 公共卫生 公共卫生
背景情况:
- 中上臂周长 (MUAC) 是骨肌肉 (SM) 的潜在指标,但对于年轻人来说缺乏确定的切断点.
- 过多的肥胖可以混人类测量标记,可能掩盖它们在评估SM中的实用性.
研究的目的:
- 建立一个大,年轻的参考人群中肌肉质量评估的MUAC截止点.
- 为MUAC开发BMI调整因子,以解释过度肥胖.
主要方法:
- 利用了来自NHANES 1999-2006样本的数据,包括DXA.的人类测量和尾瘦软组织 (ALST) 的数据.
- 定义了一个参考人群 (年龄在18-39岁之间,BMI为18.5-24.9 kg/m2).
- 以1和2个SD低于平均值的MUAC截止点和使用回归分析计算的BMI调整因子.
主要成果:
- MUAC与ALST指数有很强的相关性 (r=0.83男性,r=0.79女性).
- 建议的低MUAC截止点:28厘米 (男性),25厘米 (女性);非常低的MUAC:26厘米 (男性),23厘米 (女性).
- 来自BMI调整因子,用于不同程度的超重和肥胖.
结论:
- 这项研究提供了实际的MUAC切断点和BMI调整因子,以提高骨肌肉评估.
- 这些发现旨在提高MUAC在临床环境中的准确性,特别是在BMI较高的人群中.
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