Assessing the Bite Counter as a Tool for Food Intake Monitoring: Phase II

描述（由申请人提供）：自我监控被描述为“肥胖行为治疗的基石”。持续的自我监测能量摄入与改善饮食依从性、减肥和维持体重有关。问题在于，人们在自我监控自己的摄入量方面是出了名的糟糕，并且存在着少报的偏见。这项工作的意义在于，它将使一种低成本的摄入监测装置广泛应用于行为减肥治疗和研究。我们创新的摄取量监测方法将传感器嵌入到一个类似手表的设备中，自动跟踪手腕的运动，计算咬数，并在用餐时提供摄取量反馈，让个人随时随地自我监测摄取量。在第一阶段，该方法被证明可以准确地统计各种食物、器具和受试者的咬伤情况，并提供公正的摄入量测量。其他研究表明，人们会长期使用该设备，并且更喜欢我们的方法而不是手动方法。建议的工作将继续通过适应不同的进食率来改进咬数方法，开发基于自我管理的咬数减肥方案，并对该方案进行独立测试。

DESCRIPTION (provided by applicant): Self-monitoring has been described as the "cornerstone of the behavioral treatment of obesity" . Consistent self-monitoring of energy intake is associated with improved dietary adherence and weight loss and maintenance. The problem is that individuals are notoriously bad at self-monitoring their intake and suffer from an underreporting bias. The significance of the proposed work is that it will make a low-cost intake monitoring device widely available for use in behavioral weight loss treatment and research. Our innovative intake monitoring method uses sensors embedded into a watch-like device to automatically track wrist motion to count bites and provide intake feedback during a meal, allowing individuals to self-monitor intake anywhere and anytime. In Phase 1, the method was shown to accurately count bites across a wide variety of foods, utensils and subject demographics, and to provide an unbiased intake measurement. Additional studies show people will use the device long-term and prefer our method over a manual method. The proposed work will continue to improve the bite counting method by adapting to varying eating rates, develop a self-managed bite count based weight loss protocol, and perform an independent test of the protocol.