Antonio Jose, Ellerbroek Anya, Silver Tobin, Vargas Leonel, Tamayo Armando, Buehn Richard, Peacock Corey A
Exercise and Sport Science Laboratory, Nova Southeastern University, Davie, FL, USA.
J Nutr Metab. 2016;2016:9104792. doi: 10.1155/2016/9104792. Epub 2016 Oct 11.
The purpose of this investigation was to determine the effects of a high protein diet over a one-year period. Fourteen healthy resistance-trained men completed the study (mean ± SD; age 26.3 ± 3.9 yr; height 178.5 ± 8.4 cm; and average years of training 8.9 ± 3.4 yr). In a randomized crossover design, subjects consumed their habitual or normal diet for 2 months and 4 months and alternated that with a higher protein diet (>3 g/kg/d) for 2 months and 4 months. Thus, on average, each subject was on their normal diet for 6 months and a higher protein diet for 6 months. Body composition was assessed via the Bod Pod. Each subject provided approximately 100-168 daily dietary self-reports. During the subjects' normal eating phase, they consumed (mean ± SD) 29.94 ± 5.65 kcals/kg/day and 2.51 ± 0.69 g/kg/day of protein. This significantly increased ( < 0.05) during the high protein phase to 34.37 ± 5.88 kcals/kg/day and 3.32 ± 0.87 g/kg/day of protein. Our investigation discovered that, in resistance-trained men that consumed a high protein diet (~2.51-3.32 g/kg/d) for one year, there were no harmful effects on measures of blood lipids as well as liver and kidney function. In addition, despite the total increase in energy intake during the high protein phase, subjects did not experience an increase in fat mass.
本研究的目的是确定高蛋白饮食在一年时间内的影响。14名经过抗阻训练的健康男性完成了这项研究（平均值±标准差；年龄26.3±3.9岁；身高178.5±8.4厘米；平均训练年限8.9±3.4年）。在随机交叉设计中，受试者在2个月和4个月期间食用其习惯或正常饮食，并与高蛋白饮食（>3克/千克/天）交替2个月和4个月。因此，平均而言，每个受试者食用正常饮食6个月，高蛋白饮食6个月。通过体脂测量仪评估身体成分。每个受试者提供了大约100 - 168份每日饮食自我报告。在受试者的正常饮食阶段，他们每天消耗（平均值±标准差）29.94±5.65千卡/千克和2.51±0.69克/千克的蛋白质。在高蛋白阶段，这显著增加（<0.05）至34.37±5.88千卡/千克/天和3.32±0.87克/千克/天的蛋白质。我们的研究发现，在进行抗阻训练且食用高蛋白饮食（约2.51 - 3.32克/千克/天）一年的男性中，对血脂以及肝肾功能指标没有有害影响。此外，尽管在高蛋白阶段能量摄入总体增加，但受试者的脂肪量并未增加。
