Clinical Nutrition Research Centre (CNRC), Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), National University Health System, Singapore 117599, Singapore.
Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore.
Nutrients. 2017 Aug 17;9(8):891. doi: 10.3390/nu9080891.
Faster eating has been identified as a risk factor for obesity and the current study tested whether eating rate is consistent within an individual and linked to energy intake across multiple meals. Measures of intake, eating rate, and oral processing at the same or similar test meal were recorded on four non-consecutive days for 146 participants (117 male, 29 female) recruited across four separate studies. All the meals were video recorded, and oral processing behaviours were derived through behavioural coding. Eating behaviours showed good to excellent consistency across the meals (intra-class correlation coefficients > 0.76, < 0.001) and participants who ate faster took larger bites ( ≥ 0.39, < 0.001) and consistently consumed more energy, independent of meal palatability, sex, body composition and reported appetite ( ≥ 0.17, ≤ 0.025). Importantly, eating faster at one meal predicted faster eating and increased energy intake at subsequent meals ( > 0.20, < 0.05). Faster eating is relatively consistent within individuals and is predictive of faster eating and increased energy intake at subsequent similar meals consumed in a laboratory context, independent of individual differences in body composition.
进食速度较快与肥胖有关，本研究旨在检测个体的进食速度是否具有一致性，并分析其与多次进食的能量摄入之间的关系。研究招募了来自四项独立研究的 146 名参与者（男性 117 名，女性 29 名），在四天内进行了四次非连续的测试，分别记录了摄入、进食速度和口腔处理的情况。所有的餐食都进行了视频记录，并通过行为编码得出口腔处理行为。结果表明，进食行为在各餐之间具有较好的一致性（组内相关系数 > 0.76， < 0.001），进食速度较快的参与者每口食物的咀嚼次数更多（ ≥ 0.39， < 0.001），且无论餐食的美味程度、性别、身体成分和报告的食欲如何，他们的能量摄入始终更高（ ≥ 0.17， ≤ 0.025）。重要的是，一顿饭吃得越快，随后的几餐也会吃得越快，摄入的能量也会增加（ > 0.20， < 0.05）。在实验室环境中，个体的进食速度具有一定的稳定性，且能够预测随后类似的餐食中进食速度的加快和能量摄入的增加，而与个体的身体成分差异无关。
