VALIDATION OF AN INTEGRATED HEART RATE/ACTIVITY MONITOR

集成心率/活动监测器的验证

• 批准号: 7606688
• 负责人: GLENN A GAESSER
• 金额: $ 6.95万
• 依托单位: UNIVERSITY OF VIRGINIA
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-03-01 至 2008-02-29
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7606688
• 关键词: Adult; Child; Computer Retrieval of Information on Scientific Projects Database; Count; Diet; Energy Metabolism; Funding; Grant; Heart Rate; Institution; Measurement; Measures; Metabolic; Methods; Monitor; Motion; NIH Program Announcements; Oxygen Consumption; Pattern; Physical activity; Population; Population Heterogeneity; Purpose; Questionnaires; Research; Research Personnel; Resources; Running; Source; Support of Research; System; Techniques; Technology; United States National Institutes of Health; Validation; Walking; design; improved; instrument; research and development; sensor; tool

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. Physical activity assessment tools have become increasingly more important in research. Currently, the most common method for assessing physical activity, especially in large populations, is via questionnaire. Although reasonably well validated, this method is less than ideal as it relies on subject recall and also cannot provide accurate information with regard to the intensity of physical activity. An alternative to physical activity recall as assessed via questionnaire is the use of step counters and accelerometers (i.e., motion sensors) although currently available products have serious shortcomings. For example, step counters count steps during walking or running, but they are not useful for estimating other kinds of activities, for providing temporal information about activity patterns, or for estimating activity energy expenditure. Most of the currently available accelerometers also have one or more limitations. Therefore further research and development is needed to make available an accurate, unobtrusive, and inconspicuous activity monitor that can be used for quantifying physical activity in children and adults. Barron Associates, Inc., in Charlottesville, VA, has developed such a physical activity monitor (PAM). The purpose of the present study is to compare energy expenditure estimates from this PAM with actual energy expenditure and heart rate measured via oxygen consumption with a lightweight, portable metabolic measurement system. This research effort is responsive to an NIH program announcement (PAR-03-009; Improving Diet and Physical Activity Assessment) designed to "support research to improve physical activity measurement through improved instruments, technologies, or statistical/analytic techniques," for use in "general and diverse populations."

该子项目是利用该技术的众多研究子项目之一 资源由 NIH/NCRR 资助的中心拨款提供。子项目和 研究者 (PI) 可能已从 NIH 的另一个来源获得主要资金， 因此可以在其他 CRISP 条目中表示。列出的机构是 对于中心来说，它不一定是研究者的机构。 身体活动评估工具在研究中变得越来越重要。 目前，评估身体活动（尤其是在大量人群中）的最常见方法是通过问卷调查。 尽管经过相当充分的验证，但这种方法并不理想，因为它依赖于受试者的回忆，并且也无法提供有关身体活动强度的准确信息。 通过问卷评估身体活动回忆的另一种方法是使用计步器和加速度计（即运动传感器），尽管目前可用的产品存在严重缺陷。 例如，计步器可以计算步行或跑步期间的步数，但它们对于估计其他类型的活动、提供有关活动模式的时间信息或估计活动能量消耗没有用处。 目前大多数可用的加速度计也有一个或多个限制。 因此，需要进一步的研究和开发，以提供一种准确、不引人注目且不显眼的活动监测器，可用于量化儿童和成人的身体活动。 位于弗吉尼亚州夏洛茨维尔的 Barron Associates, Inc. 开发了这样一种身体活动监测器 (PAM)。 本研究的目的是将该 PAM 估计的能量消耗与使用轻型便携式代谢测量系统通过耗氧量测量的实际能量消耗和心率进行比较。 这项研究工作是对 NIH 计划公告（PAR-03-009；改善饮食和身体活动评估）的响应，旨在“支持通过改进仪器、技术或统计/分析技术来改善身体活动测量的研究”，以用于“一般和不同人群”。