Higher 24-h respiratory quotient and higher spontaneous physical activity in nighttime eaters.
Higher 24-h respiratory quotient and higher spontaneous physical activity in nighttime eaters.
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在夜间食者中，较高的24小时呼吸商和较高的自发体育锻炼。
DOI：
10.1038/oby.2010.206
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发表时间：
2011-03
期刊：
影响因子：
--
通讯作者：
Krakoff J
中科院分区：
文献类型：
--
作者：
Gluck ME;Venti CA;Salbe AD;Votruba SB;Krakoff J
我们之前已经表明，较高的24小时呼吸商（24小时RQ）预测更大的随意食物摄入量，夜间进食者（NE）在住院患者食物摄入量研究中摄入更多的卡路里，并随着时间的推移增加更多的体重。我们调查了24小时RQ是否在表现出夜间进食行为的个体中更高。健康非糖尿病皮马印第安人（PI; n = 97，54名男性/43名女性）和白人（W; n = 32，22名男性/10名女性）入住我们的临床研究单位。经过3天的体重维持饮食，24小时能量消耗（24小时EE），24小时RQ，碳水化合物（CHOX）和脂质氧化（LIPOX）的速率，和自发的体力活动（SPA），而志愿者在能量平衡，不能消耗多余的热量代谢室进行了测量。个体随后从计算机化自动售货机随意进食3天，并记录食物摄入的量和时间。55个人（36%; 39 PI，16 W）是NE，他们在自动售货机上的3天中至少有一天在上午11点到凌晨5点之间进食。NE和非NE之间的BMI或体脂百分比没有差异。在调整了年龄、性别、种族、去脂质量、脂肪质量和能量平衡后，与非NE相比，NE具有较高的24小时RQ（P = 0.01）、较高的CHOX（P = 0.009）、较低的LIPOX（P = 0.03）和较高的24小时SPA（P = 0.04）。两组间校正后的24小时EE或睡眠RQ无差异。具有夜间进食行为的个体具有较高的24小时RQ，较高的CHOX和较低的LIPOX，这是一种与食物摄入量增加和体重增加相关的表型。
We have previously shown that a higher 24-h respiratory quotient (24-h RQ) predicts greater ad-libitum food intake and that nighttime eaters (NE) ingested more calories during an in-patient food intake study and gained more weight over time. We investigated whether 24-h RQ was higher in individuals who exhibited nighttime eating behavior. Healthy nondiabetic Pima Indians (PI; n = 97, 54 male/43 female) and whites (W; n = 32, 22 male/10 female) were admitted to our Clinical Research Unit. After 3 days of a weight maintaining diet, 24-h energy expenditure (24-h EE), 24-h RQ, rates of carbohydrate (CHOX) and lipid oxidation (LIPOX), and spontaneous physical activity (SPA) were measured in a metabolic chamber whereas volunteers were in energy balance and unable to consume excess calories. Individuals subsequently ate ad libitum from a computerized vending machine for 3 days with amount and timing of food intake recorded. Fifty-five individuals (36%; 39 PI, 16 W) were NE, who ate between 11 am and 5 am on at least one of the 3 days on the vending machines. There were no differences in BMI or percentage body fat between NE and non-NE. After adjusting for age, sex, race, fat-free mass, fat mass, and energy balance, NE had a higher 24-h RQ (P = 0.01), higher CHOX (P = 0.009), and lower LIPOX (P = 0.03) and higher 24-h SPA (P = 0.04) compared to non-NE. There were no differences in adjusted 24-h EE or sleep RQ between the groups. Individuals with nighttime eating behavior have higher 24-h RQ, higher CHOX and lower LIPOX, a phenotype associated with increased food intake and weight gain.
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DOI：
10.1097/00075197-200307000-00001
发表时间：
2003-07-01
影响因子：
3.1
作者：
Sakurai, T
通讯作者：
Sakurai, T
影响因子：
6.9
作者：
Roberts, Cliff;Troop, Nicholas;Campbell, Iain C.
通讯作者：
Campbell, Iain C.
影响因子：
5.8
作者：
Snitker, S;Tataranni, PA;Ravussin, E
通讯作者：
Ravussin, E
影响因子：
7.1
作者：
MAZESS, RB;BARDEN, HS;HANSON, J
通讯作者：
HANSON, J
影响因子：
5.8
作者：
Salbe, AD;Tschöp, MH;Tataranni, PA
通讯作者：
Tataranni, PA