Mathematical determination of feeding patterns and its consequence on correlational studies
Mathematical determination of feeding patterns and its consequence on correlational studies
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DOI：
10.1016/s0031-9384(98)00159-0
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发表时间：
1998-08-01
影响因子：
2.9
通讯作者：
Nicolaidis, S
中科院分区：
文献类型：
--
作者：
Demaria-Pesce, VH;Nicolaidis, S
文献中对摄食模式参数的定义，以及一餐的大小和前后间隔之间的关系的定义存在分歧。本文基于22只大鼠的1513次进食记录，采用一种改进的方法来建立摄食行为参数，其主要原则是：在处理原始数据之前，不需要预先定义参数。然后，确定进餐特征、进餐持续时间、进餐大小、餐间停顿、进餐间隔和摄食率。一旦建立了膳食的特征，我们的方法就通过提供预定的膳食进行了实验验证。根据摄取率的不同，还确定了三类膳食：慢餐、中餐和快餐。也就是说，有些人吃得慢，而其他人吃得快。除了验证所提出的方法，收集的数据也被用来重新讨论关于餐后相关性的问题。膳食大小与餐前或餐后间隔之间的相关性尚未得到证实。然而，当我们将之前基于其他作者使用的任意标准的分析方法应用于我们自己的数据时，我们验证了这些相关性。通过强化使用原始数据和客观标准来定义摄食行为参数的原则，本研究允许进一步考虑餐与餐之间的关系，并提出了从生理意义上解释这种关系的问题。(C)1998年爱思唯尔科学公司。
The literature contains discrepancies on the definition of parameters of feeding pattern and, consequently; on the relation between the size of a meal and the interval that precedes and follows it. In this paper, based on 1513 meals recorded on 22 rats, we used a modified method to set up the parameters of ingestive behavior based on one main principle: no parameter had to be pre-defined before the raw data were processed. Then, the characteristics of the meal, meal duration, meal size, intra-meal pauses, inter-meal intervals, and rate Of ingestion were determined. Once the characteristics of the meal were set up, our method was experimentally validated by offering scheduled meals. Depending on the ingestion rate, three classes of meals were also identified: slow-, medium-, and fast-rate meals. i.e., there were individuals who tended to eat slowly while others ate faster. Besides validating the proposed method, the collected data were also used to revisit the question concerning the post-prandial correlations. The correlations between meal size and the pre or post-prandial intervals weren't confirmed. However, when we applied to our own data previous methods of analysis based on arbitrary criteria used by other authors, we verified those correlations. By reinforcing the principle of using raw data and objective criteria to define feeding behavior parameters, this study allows to further consider the meal-to-meal relations and raises the problem of the interpretation of such relations in terms of their physiological significance. (C) 1998 Elsevier Science Inc.