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

描述(申请人提供)：自我监测被描述为“肥胖行为治疗的基石”。始终如一的自我监测能量摄入与改善饮食依从性以及减肥和维持有关。问题是，众所周知，个人在自我监控自己的摄入量方面做得很差，而且存在报告不足的偏见。这项拟议工作的意义在于，它将使一种低成本的摄入量监测设备广泛用于行为减肥治疗和研究。我们创新的摄入量监测方法使用内置在类似手表的设备中的传感器来自动跟踪手腕运动，以计算咬入量并在用餐期间提供摄入量反馈，使个人能够随时随地自我监测摄入量。在第一阶段，该方法被证明可以准确地计算各种食物、用具和受试者的人口统计数据，并提供无偏见的摄入量测量。其他研究表明，人们会长期使用这种设备，而且比起手动方法，他们更喜欢我们的方法。这项拟议的工作将继续改进咬人计数方法，适应不同的进食率，开发基于自我管理的咬人计数减肥协议，并对该协议进行独立测试。

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.