Elke Naumann, Department of Nutrition, Sports and Health, Faculty of Health and Social Studies, HAN University of Applied Sciences, PO box 6960, 6503 GL Nijmegen, the Netherlands. E-mail:
J Nutr Health Aging. 2015 May;19(5):525-30. doi: 10.1007/s12603-015-0471-6.
To investigate the effects of protein enriched bread and drinking yoghurt, substituting regular products, on the total protein intake and the distribution of protein intake over the day in older adults.
A single blind randomised controlled trial.
Rehabilitation centre.
Older adults (≥ 55 years) admitted to a rehabilitation centre after hospital discharge (n=34).
Participants received a high protein diet (protein enriched bread and protein enriched drinking yoghurt; n=17) or a regular diet (regular bread and regular drinking yoghurt; n=17) for three consecutive weeks.
Total protein intake and protein intake per meal, measured twice weekly over a three weeks period (six measurements per participant).
Compared with controls, patients who received the protein enriched products had a significantly higher protein intake (115.3 g/d vs 72.5 g/d, P<0.001; 1.6 g/kg/d vs 1.1 g/kg/d, P<0.001). The intervention group consumed quantities over the recommended level (25-30 g/meal) during each of the three meals (32.5 g, 30.0 g, 34.8 g/meal), where the control group consumed quantities below the recommended level during breakfast (17.7 g) and lunch (18.4 g).
The use of protein enriched products, replacing regular products, results in a significant increased daily protein intake in older adults. In addition, the daily consumption of protein enriched products improves protein distribution over the day.
研究富含蛋白质的面包和饮用酸奶替代常规产品对老年人总蛋白质摄入量和蛋白质摄入量在一天内分布的影响。
单盲随机对照试验。
康复中心。
出院后入住康复中心的老年人（≥55 岁；n=34）。
参与者接受高蛋白饮食（富含蛋白质的面包和富含蛋白质的饮用酸奶；n=17）或常规饮食（常规面包和常规饮用酸奶；n=17），连续 3 周。
在 3 周的时间内每周测量两次总蛋白质摄入量和每餐蛋白质摄入量（每位参与者共 6 次测量）。
与对照组相比，接受富含蛋白质产品的患者蛋白质摄入量显著增加（115.3 g/d 比 72.5 g/d，P<0.001；1.6 g/kg/d 比 1.1 g/kg/d，P<0.001）。干预组在三顿正餐中每餐都摄入了超过推荐量（25-30 g/餐）的量（每餐 32.5 g、30.0 g、34.8 g），而对照组在早餐（17.7 g）和午餐（18.4 g）时摄入的量低于推荐量。
使用富含蛋白质的产品替代常规产品可显著增加老年人的每日蛋白质摄入量。此外，日常食用富含蛋白质的产品可改善蛋白质在一天内的分布。
