Spontaneous human meal patterns are related to preprandial factors regardless of natural environmental constraints
Spontaneous human meal patterns are related to preprandial factors regardless of natural environmental constraints
复制标题
无论自然环境限制如何，人类自发膳食模式都与餐前因素有关
DOI：
10.1016/0031-9384(86)90128-9
复制
发表时间：
1986
影响因子：
2.9
通讯作者：
S. Kreitzman
中科院分区：
文献类型：
--
作者：
J. D. Castro;J. McCormick;Margaret Pedersen;S. Kreitzman
人们在一顿饭中的进食量与自上次进餐以来的时间长短之间存在正相关关系(餐前相关性)。这项研究试图确定这种相关性是否由于饮食环境的限制而发生。8名男性和30名女性本科生被要求列出他们吃的所有东西以及吃的时间。他们被要求在一本日记中记录他们在9天内的饮食情况。他们还被指示表明进餐是自发的，是对饥饿或食物欲望的反应，还是由外部因素决定的限制。然后计算每顿饭中的食物能量，并用数学模型估计每顿饭开始和结束时留在胃里的量。然后，这些数据与用餐前和用餐后间隔的持续时间相关联。研究发现，无论这顿饭是自发开始的，还是在环境限制下开始的，在餐前因素的基础上，餐中的摄入量都是可以预测的。无论是限制进食还是自发进餐，都发现了显著的餐前相关性。即使只有自发性进餐前的两餐相关，也没有发现进食量与随后的间隔时间(餐后相关性)之间的关系。限制进餐的比例与餐前或餐后相关性的大小之间没有显著的相关性。这一发现表明，人类开始进食，要么是对外部决定的时间表做出反应，要么是在没有限制的情况下对学习时间表做出反应。然后，通过部分地根据营养耗竭/再耗尽的内部状态来调整一餐中的食用量来进行调节。
There is a positive relationship between the amount people eat in a meal and the length of time since the previous meal (preprandial correlation). This study attempted to ascertain whether this correlation occurs due to environmental constraints on eating. Eight male and 30 female undergraduate students were instructed to list everything they ate and when they ate it. They were asked to make a recording in a diary of their eating and drinking throughout a 9 day period. They were also instructed to indicate whether the meal was spontaneous, in response to hunger or the desire for food, or constrained, determined by external factors. The amount of food energy in each meal was then calculated, and the amount remaining in the stomach at the beginning and end of each meal was estimated with a mathematical model. These data were then correlated with the duration of the intervals preceding and following the meals. The amoung eaten in the meals was found to be predictable on the basis of preprandial factors regardless of whether the meal was initiated spontaneously or under environmental restrictions. Significant preprandial correlations were found for both constrained and spontaneous meals. No relationship was found between the amount ingested in the meal and the following interval (postprandial correlation) even when only the meals preceding a spontaneous meal were correlated. There were no significant correlations between the proportion of the meals that were constrained and the magnitude of either the preprandial or postprandial correlations. The findings suggest that humans initiate eating either in response to an externally determined schedule or to a learned schedule when constraints are not present. Regulation then occurs by adjusting the amount eaten in a meal based in part upon the internal state of nutrient depletion/repletion.
胃排空的调节。
DOI：
--
发表时间：
1985
期刊：
Federation proceedings
影响因子：
--
作者：
Burks,TF;Galligan,JJ;Porreca,F;Barber,WD
通讯作者：
Barber,WD