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外文期刊>American Journal of Physiology
>Leucine coingestion augments the muscle protein synthetic response to the ingestion of 15 g of protein following resistance exercise in older men
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Leucine coingestion augments the muscle protein synthetic response to the ingestion of 15 g of protein following resistance exercise in older men
Older adults have shown an attenuated postexercise increase in muscle protein synthesis rates following ingestion of smaller amounts of protein compared with younger adults. Consequently, it has been suggested that older adults require the ingestion of more protein to increase postexercise muscle protein synthesis rates compared with younger adults. We investigated whether coingestion of 1.5 g of free leucine with a single 15-g bolus of protein further augments the postprandial muscle protein synthetic response during recovery from resistance-type exercise in older men. Twenty-four healthy older men (67 ± 1 yr) were randomly assigned to ingest 15 g of milk protein concentrate (MPC80) with (15G+LEU; n = 12) or without (15G; n = 12) 1.5 g of free leucine after performing a single bout of resistance-type exercise.
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机译:与年轻人相比,老年人在摄入少量蛋白质后,肌肉蛋白质合成率在运动后增加减弱。因此,有人认为,与年轻人相比,老年人需要摄入更多的蛋白质来提高运动后肌肉蛋白质的合成率。我们研究了 1.5 g 游离亮氨酸与单次 15 g 蛋白推注的结合是否会进一步增强老年男性从阻力型运动中恢复期间的餐后肌肉蛋白质合成反应。24 名健康老年男性(67 ± 1 岁)被随机分配摄入 15 克浓缩牛奶蛋白 (MPC80) 和 (15G+LEU; n = 12) 或不含 (15G; n = 12) 1.5 g 游离亮氨酸。
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