Validity of the Bite Counter device in a controlled laboratory setting
Validity of the Bite Counter device in a controlled laboratory setting
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DOI：
10.1016/j.eatbeh.2014.06.013
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发表时间：
2014-08-01
期刊：
影响因子：
2.8
通讯作者：
Coe, Dawn P.
中科院分区：
文献类型：
--
作者：
Desendorf, Jenna;Bassett, David R., Jr.;Coe, Dawn P.
身体传感器可能有助于评估饮食行为，并有可能克服自我报告工具的一些局限性。咬计数器是一种新的商业设备，戴在手腕上，旨在跟踪每天的咬数。它包含一个三轴加速度计，可以检测从桌子到嘴巴的向上弧形运动，称为手腕滚动。目的：检查咬计数器设备用于测量个体在食用各种食物和饮料时的叮咬的有效性。方法：15名成年人（23-58岁）将该装置戴在他们的优势手的手腕上。向他们提供由食物/饮料组成的膳食，每种食物/饮料都用不同的器具食用：肉（刀叉）、配菜（叉子）、汤（勺子）、比萨饼（手）、苏打水罐（手）和冰沙（吸管）。每一种食物或饮料都是按连续的顺序单独食用的。一位研究人员通过一面单向镜观察它们，并计算它们被咬的次数。结果如下：实际吃的百分比如下：肉（127%），配菜（82.6%），汤（60.2%），比萨饼（87.3%），苏打水（81.7%）和冰沙（57.7%）。总体平均值为81.2%。结论：结果表明，咬计数器有望能够计数手到嘴的动作的数量。总的来说，它低估了手到嘴的动作，但某些类型的手的动作导致高估了叮咬。未来的研究应进行，以提高咬计数器设备的灵敏度和特异性。(C)2014爱思唯尔有限公司版权所有。
Body-borne sensors may be useful in assessing eating behaviors and have the potential to overcome some of the limitations of self-report instruments. The Bite Counter is a new commercial device, worn on the wrist that purports to track the number of bites taken per day. It contains a tri-axial accelerometer that detects an upward, arcing motion from the table to the mouth, known as a wrist roll. Purpose: To examine the validity of the Bite Counter device for measuring bites in individuals while consuming various foods and beverages. Methods: 15 adults (23-58 years old) wore the device on the wrist of their dominant hand. They were presented with a meal consisting of foods/beverages, each consumed with different utensils: meat (knife and fork), side items (fork), soup (spoon), pizza (hands), can of soda (hands), and a smoothie (straw). Each food or drink was consumed by itself, in consecutive order. A researcher observed them through a one-way mirror and counted the number of bites taken. Results: The percentage of actual bites taken varied as follows: Meat (127%), side items (82.6%), soup (60.2%), pizza (87.3%), soda (81.7%), and smoothie (57.7%). The overall mean was 81.2% of bites taken. Conclusion: The results indicate that the Bite Counter holds promise for being able to count the number of hand-to-mouth movements. In general, it underestimated hand-to-mouth movements, but some types of hand movements caused overestimation of bites. Future studies should be undertaken to improve the sensitivity and specificity of the Bite Counter device. (C) 2014 Elsevier Ltd. All rights reserved.