Weight loss is greater with consumption of large morning meals and fat-free mass is preserved with large evening meals in women on a controlled weight reduction regimen
Weight loss is greater with consumption of large morning meals and fat-free mass is preserved with large evening meals in women on a controlled weight reduction regimen
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DOI：
10.1093/jn/127.1.75
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发表时间：
1997-01-01
影响因子：
4.2
通讯作者：
Mayclin, PL
中科院分区：
文献类型：
--
作者：
Keim, NL;VanLoan, MD;Mayclin, PL
本研究的目的是确定膳食摄入模式[大量的早餐（AM）与大量的晚餐（PM）]是否会影响减肥期间体重、身体成分或能量利用的变化。10名妇女完成了代谢病房研究，3周体重稳定，随后12周体重波动，适度限制能量饮食[平均能量摄入+/- SD = 107 +/- 6 kJ/(kg)]。D)定期锻炼。减肥阶段分为两个为期6周的阶段。在第1阶段，每日能量摄入的70%分别在上午（n = 4）和下午（n = 6）两餐中摄入。在第二阶段，受试者进入交替用餐时间。AM组的减重和无脂质量均高于PM组：3.90 +/- 0.19 vs. 3.27 +/- 0.26 kg/6周，P < 0.05; 1.28 +/- 0.14 vs. 0.25 +/- 0.16 kg/6周，P < 0.001。脂肪量的变化和身体能量的损失受摄食顺序的影响。PM模式导致第1期脂肪量减少较多（P < 0.01），而第2期脂肪量减少较少。同样，下午中段静止脂肪氧化率随PM模式在第1期升高（P < 0.05），而在第2期不升高（P < 0.05），与脂肪量的变化相对应。综上所述，摄入较大的AM餐导致体重减轻略大，但摄入较大的PM餐导致更好地维持无脂质量。因此，在减肥方案中加入更大的PM餐对于最小化无脂质量的损失可能是重要的。
The purpose of this study was to determine whether meal ingestion pattern [large morning meals (AM) vs. large evening meals (PM)] affects changes in body weight, body composition or energy utilization during weight loss. Ten women completed a metabolic ward study of 3-wk weight stabilization followed by 12 wk of weight toss with a moderately energy restricted diet [mean energy intake +/- SD = 107 +/- 6 kJ/(kg . d)] and regular exercise. The weight loss phase was divided into two 6-wk periods. During period 1, 70% of daily energy intake was taken as two meals in the AM (n = 4) or in the PM (n = 6). Subjects crossed over to the alternate meal time in period 2. Both weight loss and fat-free mass loss were greater with the AM than the PM meal pattern: 3.90 +/- 0.19 vs. 3.27 +/- 0.26 kg/6 wk, P < 0.05, and 1.28 +/- 0.14 vs. 0.25 +/- 0.16 kg/6 wk, P < 0.001, respectively. Change in fat mass and loss of body energy were affected by order of meal pattern ingestion. The PM pattern resulted in greater loss of fat mass in period 1 (P < 0.01) but not in period 2. Likewise, resting mid-afternoon fat oxidation rate was higher with the PM pattern in period 1 (P < 0.05) but not in period 2, corresponding with the fat mass changes. To conclude, ingestion of larger AM meals resulted in slightly greater weight loss, but ingestion of larger PM meals resulted in better maintenance of fat-free mass. Thus, incorporation of larger PM meals in a weight loss regimen may be important in minimizing the loss of fat-free mass.