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在午餐时替代碳水化合物添加的蛋白质增加脂肪氧化在随后的运动中在健康的男性增加脂肪氧化
Tommy Slater1,2, William J A Mode1, Louise C Bonnard1
1Musculoskeletal Physiology Research Group, Sport, Health and Performance Enhancement Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK.
在运动前的午餐时增加碳水化合物和减少蛋白质可以促进脂肪氧化,抑制食欲,并减少随后的卡路里摄入量. 这种运动前饮食策略会影响能量平衡和代谢反应.
科学领域:
- 运动生理学 运动生理学
- 营养科学 营养科学
- 代谢健康 代谢健康
背景情况:
- 运动前食成分对后期炼期间代谢和健康结果的影响仍然不太清楚.
- 运动表现和身体组成的最佳营养时间是一个活跃的研究领域.
研究的目的:
- 研究运动前午餐中改变碳水化合物与蛋白质的比例如何影响运动代谢,食欲调节和随后的能量消耗.
- 为了比较低碳水化合物/高蛋白午餐与高碳水化合物/低蛋白午餐以及禁食对代谢和激素反应的影响.
主要方法:
- 12名健康男性参与了三个随机试验:低碳水化合物/高蛋白午餐 (LO-CARB),高碳水化合物/低蛋白午餐 (HI-CARB) 或禁食 (FAST).
- 参与者随后完成了一小时的骑自行车运动,随后测量了运动后的自由能量摄入量.
- 代谢标记物包括基质氧化,血葡萄糖,胰岛素,非化脂肪酸 (NEFA),YY (PYY),类似葡萄糖1 (GLP-1) 和酸 ghrelin 在饭后和运动后进行评估.
主要成果:
- 与HI-CARB试验相比,在禁食和LO-CARB试验期间观察到较高的脂肪氧化.
- 荷尔蒙反应表明,与禁食相比,HI-CARB和LO-CARB饮食对食欲的抑制更大,PYY,GLP-1和乙烯酸格林的特定模式.
- 与FAST和HI-CARB条件相比,在LO-CARB午餐后,运动后的能量摄入量明显较低.
结论:
- 在运动前的午餐中用碳水化合物代替蛋白质,可以在随后的运动中增强脂肪氧化.
- 这种饮食策略有效地抑制了主观情绪和胃口的荷尔蒙标志物.
- 运动前的高碳水化合物和低蛋白质饮食导致运动后的整体能量摄入量减少.
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