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Acute Metabolic Effects of Consuming Either Whey Protein Concentrate or Hydrolysate Versus Carbohydrate in Healthy Young Men

机译:摄入乳清蛋白浓缩物或水解物与碳水化合物对健康年轻人的急性代谢影响

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摘要

The acute metabolic responses to consuming isocaloric drinks containing either whey protein concentrate (WPC), whey protein hydrolysate (WPH), or carbohydrate placebo (CHO) were examined. In a single-blind, randomized, crossover design, 14 healthy young men consumed each of the treatments and had their resting energy expenditure (REE) and respiratory exchange ratio (RER) assessed by indirect calorimetry over a 3-hr postprandial period. Values were compared to a pretreatment, fasting baseline measurement using repeated-measures ANOVA. WPH and WPC significantly (p < .05) elevated REE versus CHO, and WPC elevated REE greater than WPH at 120 min. WPH significantly (p < .05) lowered RER compared to CHO and WPC at 90 min. Both proteins increased REE versus isocaloric CHO, indicating a higher thermic effect of food. WPH, but not WPC, influenced substrate utilization with a shift favoring lipid metabolism versus CHO, which may help explain previous findings of fat loss with WPH, but not WPC.
机译:研究了对食用含有乳清蛋白浓缩物(WPC),乳清蛋白水解物(WPH)或碳水化合物安慰剂(CHO)的等热量饮料的急性代谢反应。在单盲,随机,交叉设计中,有14位健康的年轻人服用了每种疗法,并在餐后3小时内通过间接量热法评估了他们的静息能量消耗(REE)和呼吸交换率(RER)。使用重复测量方差分析将值与治疗前的禁食基线进行比较。与CHO相比,WPH和WPC的REE显着提高(p <.05),并且WPC在120分钟时的REE高于WPH。与90分钟时的CHO和WPC相比,WPH显着降低(p <.05)RER。与等热量的CHO相比,这两种蛋白均增加了REE,表明食物的热效应更高。 WPH,而不是WPC,通过有利于脂质代谢而不是CHO的变化而影响了底物利用率,这可能有助于解释先前使用WPH而非WPC引起的脂肪减少的发现。

著录项

  • 作者

    Vogel, Rosanne M.;

  • 作者单位

    Texas Woman's University.;

  • 授予单位 Texas Woman's University.;
  • 学科 Nutrition.
  • 学位 M.S.
  • 年度 2017
  • 页码 65 p.
  • 总页数 65
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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