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定义BMI截止点,以检测年轻成年人多余的身体脂肪
Maria Cristina Gonzalez1, Alicia Matijasevich2, Gabriela Avila Marques3
1Postgraduate Program in Nutrition and Food, Federal University of Pelotas, Rio Grande do Sul, Brazil.
Nutrition (Burbank, Los Angeles County, Calif.)
|March 15, 2026
概括
新的身体质量指数 (BMI) 截止值 (男性≥24.0 公斤/平方米,女性≥23.5 公斤/平方米) 能够更好地检测年轻人体内的多余脂肪. 与传统的BMI指标相比,这些优化值可以更好地提前识别脂肪.
科学领域:
- 人体生理学 人体生理学
- 人类测量学 人类测量学.
- 公共卫生 公共卫生
背景情况:
- 超重和肥胖的传统体重指数 (BMI) 截止值可能无法准确地识别年轻成年人多余的身体脂肪.
- 准确评估身体脂肪对于早期发现与脂肪相关的健康风险至关重要.
研究的目的:
- 建立新的BMI截止点来检测18岁男性和女性的多余体脂肪.
- 将拟议的BMI截止值与传统值的准确性进行比较,使用空气位移囊学 (ADP) 作为参考.
主要方法:
- 2004年佩洛塔斯出生队列 (巴西) 的截面分析,其中3052名18岁的参与者.
- 按ADP测量的身体成分;过多的脂肪量定义为男性≥20%的脂肪量,女性≥33%.
- 接收机操作特征 (ROC) 曲线分析和尤登指数用于确定最佳的BMI截止值.
主要成果:
- 最佳的BMI截止值是男性≥24.0公斤/米2,女性≥23.5公斤/米2.
- 与传统的肥胖症切断值 (≥30.0 kg/m2) 相比,新的切断值在检测多余的身体脂肪方面表现出显著更高的灵敏度.
- 在≥30.0 kg/m2的截止值中,不到三分之一的个体被发现有多余的身体脂肪.
结论:
- 最近提出的BMI切割值 (男性≥24.0公斤/m2,女性≥23.5公斤/m2) 在检测年轻成年人多余体脂肪方面更有效.
- 这些优化的切线可以促进早期识别脂肪.
- 研究结果支持实施针对性公共卫生干预措施,以预防肥胖.
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