Validation of Objective Measures of Place-Based Physical Activity

基于地点的身体活动客观测量的验证

• 批准号: 8333939
• 负责人: Kevin Patrick
• 金额: $ 29.73万
• 依托单位: UNIVERSITY OF CALIFORNIA, SAN DIEGO
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-16 至 2014-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8333939
• 关键词: Adolescent; Adult; Algorithms; Area; Biology; Characteristics; Chicago; Child; Church; Cohort Studies; Collaborations; Communities; Controlled Study; County; Data; Development; Devices; Ensure; Environment; Exposure to; Failure; Funding; Funding Opportunities; Genes; Grant; Guidelines; Health; Hispanics; Hour; Human Activities; Information Systems; Intervention; Latina; Latino; Life; Link; Location; Measurement; Measures; Methods; National Heart, Lung, and Blood Institute; Neighborhoods; New York; Outcome; Participant; Patient Self-Report; Performance; Physical activity; Population; Positioning Attribute; Process; Prospective Studies; Quality of life; Research; Research Personnel; Respondent; Science; Site; Staging; Support System; Survey Methodology; Surveys; System; Testing; Time; Toxin; Validation; base; behavior measurement; cohort; community health study; comparative efficacy; cost; density; design; improved; intervention effect; meetings; prospective; satisfaction; tool; trait; usability; validation studies

DESCRIPTION (provided by applicant): We propose to field test and validate PALMS (Physical Activity Location Measurement System), a behavioral measurement tool that we have developed with support from the Gene-Environment Initiative (GEI). We will do this in an ongoing R01 study among church going Latinas in San Diego County. PALMS uses data from concurrently worn Global Positioning System (GPS) devices and accelerometers to ascertain location, time and type of physical activity (PA) on an essentially continuous basis. By the time this proposed project begins we will have validated the processing algorithms in PALMS in a highly controlled study supported by a GEI Opportunity Fund Grant. We have also processed 7-day GPS and accelerometer data from over 2000 participants (700 adults; 800 adolescents; and 500 children) enabling us to statistically demonstrate the value of collecting GPS data in addition to accelerometer data. However, we have not yet assessed PALMS in an ongoing cohort (or prospective) study and thus have no information on staff or participant burden in "real world" use. The field based validation study we propose herein will be the logical next step to ensure that PALMS is feasible to use-by both research staff and research participants-in typical research settings, and that it provides valid information about what it is intended to measure: the geospatial and temporal characteristics of physical activity. Importantly, we have selected to perform this research in collaboration with Dr. Elva Arredondo, PI of an R01 examining a place based physical activity intervention among Latinos in San Diego. Dr. Arredondo is a Co-investigator on a multi-site NHLBI-funded prospective cohort study, the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), a major national study with one of its four sites in San Diego (others are in Miami, New York and Chicago). The PI of the San Diego HCHS/SOL is Dr. Greg Talavera and he is a proposed co-investigator on the project we propose. Thus, this project will help set the stage for HCHS/SOL investigators to incorporate PALMS into the HCHS/SOL. In addition, place based interventions like Dr. Arredondo's R01, that are designed to improve PA environments and encourage PA in the most supportive environments, can greatly benefit from more precise measures of PA in time and space. In this study we will: a) Demonstrate the usability of PALMS in a community-based R01 trial through two rounds of assessment with participants and research staff; b) Demonstrate that PALMS can collect more precise and valid data on continuous combined measures of physical activity (via accelerometer) and location- x-time (via GPS) than current survey methods; and c) that these data provide added value to researchers as they have greater ability to predict location-x-PA relationships than current GIS or survey based methods.

描述（由申请人提供）：我们建议现场测试和验证PALMS（身体活动位置测量系统），这是我们在基因环境倡议（GEI）的支持下开发的行为测量工具。我们将在圣地亚哥县的拉丁裔教会中进行R 01研究。PALMS使用来自同时佩戴的全球定位系统（GPS）设备和加速度计的数据，基本上连续地确定身体活动（PA）的位置、时间和类型。到这个项目开始的时候，我们将在GEI机会基金资助的高度控制的研究中验证PALMS中的处理算法。我们还处理了来自2000多名参与者（700名成年人; 800名青少年;和500名儿童）的7天GPS和加速度计数据，使我们能够从统计学上证明除了加速度计数据之外还收集GPS数据的价值。然而，我们尚未在正在进行的队列（或前瞻性）研究中评估PALMS，因此没有关于“真实的世界”使用中工作人员或参与者负担的信息。基于实地验证研究，我们建议在这里将是合乎逻辑的下一步，以确保PALMS是可行的使用研究人员和研究参与者在典型的研究设置，它提供了有效的信息，它是什么打算测量：地理空间和时间特征的身体活动。重要的是，我们选择与埃尔瓦Arredondo博士合作进行这项研究，他是R 01的PI，负责在圣地亚哥的拉丁美洲人中进行基于地点的身体活动干预。Arredondo博士是NHLBI资助的一项多中心前瞻性队列研究的共同研究者，该研究是西班牙裔社区健康研究/拉丁裔研究（HCHS/SOL），这是一项主要的全国性研究，其四个研究中心之一位于圣地亚哥（其他研究中心位于迈阿密、纽约和芝加哥）。圣地亚哥HCHS/SOL的PI是Greg Talavera博士，他是我们提议的项目的拟议共同研究者。因此，该项目将有助于为HCHS/SOL调查人员将PALMS纳入HCHS/SOL奠定基础。此外，基于位置的干预措施，如Arredondo博士的R 01，旨在改善PA环境，并鼓励PA在最支持的环境中，可以大大受益于PA在时间和空间上的更精确的测量。 在本研究中，我们将：a）通过参与者和研究人员的两轮评估，证明PALMS在基于社区的R 01试验中的可用性; B）证明PALMS可以收集关于身体活动连续组合测量的更精确和有效的数据（通过加速度计）和位置-x-时间（通过GPS）比目前的调查方法;以及c）这些数据为研究人员提供了附加值，因为他们比当前基于GIS或调查的方法具有更大的预测位置-x-PA关系的能力。