VALIDATION OF SENSEWEAR ARMBAND IN OBESE PATIENTS

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 测量能量消耗/静息代谢率（RMR）的能力对于适当的营养咨询和支持至关重要。准确评估风险管理比率需要使用复杂的方法。目前的黄金标准是间接量热法，涉及使用昂贵，重型设备，这使得它在临床实践中使用繁琐。最近开发的小型便携式设备旨在帮助医疗保健专业人员轻松测量RMR。SenseWear PRO2臂带（BodyMedia，Pittsburgh，PA）是一种无线市售身体监测设备，设计用于能量消耗评估。它是戴在上臂的三头肌肌肉。监测的参数包括热通量、双轴平面中的加速度计、皮肤温度和近体温。在健康、正常体重的成年人群中比较间接量热法与新器械的有效性和功效的几项研究表明，SenseWear臂带（SWA）是可靠的。然而，尚未确定这是否适用于病态肥胖人群。由于肥胖患者皮下脂肪存款增加，认为传感器精度降低，因此RMR测量不准确。本研究的目的是在BMI>40 kg/m^2的患者中，比较SWA和金标准间接量热法技术对RMR的同步测量。我们的目标是确定SWA是否可以作为一个有效的工具，确定在营养和体重管理中心的病态肥胖患者的RMR。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The ability to measure energy expenditure/resting metabolic rate (RMR) is essential for proper nutrition counseling and support. The accurate assessment of RMR requires the use of sophisticated methodologies. The current gold standard is indirect calorimetry, involving the use of expensive, heavy equipment, which renders it cumbersome for use in clinical practice. The recent development of smaller, portable devices is aimed at helping health care professionals easily measure RMR. The SenseWear PRO2 Armband (BodyMedia, Pittsburgh, PA) is a wireless, commercially available body monitor device, designed for energy expenditure assessment. It is worn on the upper arm over the triceps muscle. Parameters monitored include heat flux, accelerometer in a double axial plain, skin temperature, and near body temperature. Several studies that compared the effectiveness and efficacy of indirect calorimetry to the new devices in a healthy, normal weight, adult population have shown that the SenseWear Armband (SWA) is reliable. However, it has not yet been determined whether this is true for a morbidly obese population. Due to an increase in subcutaneous fat deposit in obese patients, it is thought that sensor precision is decreased, and therefore RMR measurement is inaccurate. The purpose of this study is to compare simultaneous measurements of RMR with the SWA and gold standard Indirect Calorimetry technique using the metabolic cart, in patients of BMI>40 kg/m^2. It is our objective to determine whether the SWA can be utilized as an effective tool when determining the RMR of morbidly obese patients at the Nutrition and Weight Management Center.