短期低能耗可用性的代谢特征
Valentin Nusser1, Chaise Murphy2, Sieglinde Hechenbichler Figueroa1
1Professorship of Exercise, Nutrition and Health, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany.
Physiological reports
|September 29, 2025
概括
低能量可用性 (LEA) 对运动员产生负面影响. Metabolomics确定了血清生物标志物,包括β-基酸盐,用于早期检测LEA,帮助性能和健康管理.
科学领域:
- 运动科学 运动科学 运动科学
- 代谢学 代谢学 代谢学
- 人体生理学 人体生理学
背景情况:
- 低能量的可用性 (LEA) 给运动员带来健康和绩效风险.
- 早期发现LEA具有挑战性,通常仅在严重症状显现后才发生.
研究的目的:
- 确定血清代谢组的特征差异,作为LEA的潜在早期生物标志物.
- 在训练有素的成年人中调查短期LEA的代谢特征.
主要方法:
- 对来自两个随机对照试验的数据进行了大规模的代谢学分析.
- 训练有素的成年人被暴露在短期 (3-5天) 的低能耗 (LEA) 或高能耗 (HEA) 条件下,有或没有运动.
主要成果:
- 在甘油三醇,总脂肪酸,氨基酸,非常低密度脂蛋白和体 (例如β-基酸) 中观察到LEA和HEA之间的显著差异.
- 对短期LEA的反应显而易见的是,转向增加脂肪利用,改变脂蛋白配置和增强生成.
- 干预后的β-基酸盐水平 (>0.09 mmol·L−1) 是LEA最强的预测因子,无论运动是否存在.
结论:
- 短期的LEA诱导了一种明显的代谢特征,其特征是脂肪利用和生成的增加.
- 血清β-hydroxybutyrate显示为运动员LEA早期查生物标志物具有前途.
- 代谢学为早期发现LEA提供了一种有价值的工具,促进及时干预.
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