中年和老年人急性和慢性运动对利波卡林-2的影响:随机对照试验
Carlie Bauer1,2, Marc Sim3,4, Cassandra Smith3,4
1Institute for Health and Sport, Victoria University, Melbourne 3011, Australia.
European journal of endocrinology
|December 9, 2025
概括
在老年人中,急性高强度间歇运动暂时增加了脂卡林-2 (LCN2) 和改善了胰岛素敏感性. 然而,四周的高强度间歇训练并没有显著改变LCN2水平.
科学领域:
- 运动生理学 运动生理学
- 代谢健康 代谢健康
- 生物标志物 生物标志物
背景情况:
- 慢性升高的利波卡林-2 (LCN2) 与代谢功能障碍和减少身体功能有关.
- 众所周知,运动干预可以改善这些情况,但LCN2对运动的反应尚不清楚.
研究的目的:
- 调查急性和慢性运动对循环LCN2水平的影响.
- 为了确定LCN2的变化是否与葡萄糖调节,身体组成和身体功能相关.
主要方法:
- 33名中年和老年人接受了急性高强度间歇运动 (HIIE).
- 参与者被随机分配到4周的高强度间歇训练 (HIIT) 或对照组.
- 血清LCN2,胰岛素,葡萄糖和HOMA-IR在不同时间点测量,以及尿液LCN2在干预前后进行测量.
主要成果:
- 急性HIIE导致血清LCN2,胰岛素,葡萄糖和HOMA-IR在运动后立即显著,暂时增加.
- 在HIIE后3小时内,LCN2水平恢复到基线.
- 四周的HIIT改善了心肺呼吸能力 (VO2峰值),但没有显著影响LCN2水平或身体功能.
结论:
- 急性HIIE暂时提高循环中的LCN2并提高老年人胰岛素敏感性.
- 四周的HIIT并没有改变LCN2水平,这表明LCN2可能无法通过短期的慢性炼轻易改变.
- 需要进一步的研究来探索LCN2对更长时间的运动干预和血糖控制受损的个体的反应.
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