低到中等强度的急性运动减轻了食后脂血和胰岛素反应
Lisa L Ji1, Vicki S Fretwell1, Abel Escamilla1
1Department of Kinesiology, The University of Texas at San Antonio, USA.
Journal of exercise science and fitness
|November 29, 2023
概括
适度强度的运动有效地减少高脂肪餐后的食后脂血症 (PHTG) 和胰岛素抵抗. 即使是低强度的运动也有助于降低PHTG,但只有中度和高强度的运动可以显著改善胰岛素抵抗.
科学领域:
- 运动生理学 运动生理学
- 代谢健康 代谢健康
- 营养科学 营养科学
背景情况:
- 餐后脂血症 (PHTG) 是一餐后甘油三酸的短暂增加,与心血管风险有关.
- 胰岛素抵抗会影响葡萄糖的吸收,导致代谢障碍.
- 了解运动强度对这些标志物的影响,对于公共健康至关重要.
研究的目的:
- 研究不同强度的运动对健康成年人食后脂血症 (PHTG) 和胰岛素耐药性的影响.
- 为了确定运动强度是否影响PHTG的减弱和高脂肪餐后胰岛素敏感性的改善.
主要方法:
- 十名健康的成年男性完成了对照试验 (没有运动) 和三次运动试验,VO2max分别为40%,60%和70%.
- 参与者以指定的强度慢跑了1小时,12小时后又吃了一顿高脂肪的饭.
- 血液样本在饭前和饭后2,4,6,8和24小时收集,以分析血甘油三和HOMA2-IR.
主要成果:
- 与对照试验相比,所有运动强度都显著降低了餐后甘油三 (TG).
- 与对照组相比,在VO2max的60%和70%的运动显著改善了胰岛素抵抗 (HOMA2-IR).
- 不同的运动强度之间没有观察到TG减少或HOMA2-IR改善的显著差异.
结论:
- 在低到中等强度运动1小时后,高脂肪餐后有效减轻食后脂血症.
- 适度的运动强度 (60-70% VO2max) 有效地减轻胰岛素抵抗.
- 定期运动,即使是中等强度的运动,在管理新陈代谢健康方面也起着至关重要的作用.
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