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在健康的年轻男性中,更大的能量余促进了体内蛋白质的积累:一项随机临床试验

Yoichi Hatamoto¹, Yukiya Tanoue², Ryoichi Tagawa³

¹Institute for Physical Activity, Fukuoka University, Fukuoka, Japan; Department of Nutrition and Metabolism, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.

Clinical nutrition (Edinburgh, Scotland)

|October 18, 2024

概括

在健康的男性中,摄入足够的蛋白质的热量过度养会增加身体蛋白质质量. 较高的能量余显著增加了蛋白质的积累,这表明能量可用性是肌肉生长的关键.

科学领域:

人体生理学人体生理学
营养科学营养科学
代谢研究代谢研究

背景情况:

众所周知,摄入足够的蛋白质的卡路里过量养会增加身体脂肪和无脂肪质量.
过度养对人体总蛋白质质量的直接影响仍然不完全理解.
这项研究探讨了能量余和体内蛋白质积累之间的关系.

研究的目的:

为了确定热量过度养是否促进健康年轻男性的总体蛋白质质量的增加.
为了比较不同水平的能量余对身体蛋白质积累的影响.
探索在过度养期间增加体内蛋白质质量和其他生理变化之间的联系.

主要方法:

一项为期6周的随机对照试验,涉及23名健康年轻男性.
两组接受了+10%的能量余 (仅蛋白质) 或+40%的能量余 (+10%蛋白质, +30%碳水化合物).
总体蛋白质质量估计使用一个四个分区的模型,包括双能X射线吸收度和乳稀释.

主要成果:

+40%的能量余在6周内显著增加了体内的蛋白质质量3.7% (0.44公斤) (P=0.003).
+10%的能量余显示身体蛋白质质量没有显著变化 (P=0.980).
对于总体蛋白质质量 (P=0.035),观察到干预时间和能量余之间的显著相互作用,在群体间差异中趋向于显著 (P=0.059). 蛋白质质量的增加与脂肪质量的增加相关 (r=0.820,p=0.002).

结论:

更高的能量摄入量,特别是具有显著的余量,促进了健康男性摄入多余蛋白质的身体蛋白质质量的增加.
能量余似乎对体内蛋白质积累至关重要,可能受到增加的体脂质量和阿迪波金分泌的影响.
这些发现强调了能源可用性在旨在增加肌肉质量的策略中的重要性.

关键词:

四个分隔的模型.没有脂肪的无脂肪质量.勒普丁是一种激素.过度养过度养总体体蛋白质的总体蛋白质.总体体水总量身体水总量

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