Enabling Population-Scale Physical Activity Measurement on Common Mobile Phones

在普通手机上实现人口规模的身体活动测量

• 批准号: 7620388
• 负责人: STEPHEN S INTILLE
• 金额: $ 65.45万
• 依托单位: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2011-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7620388
• 关键词: Address; Adult; Algorithms; American; Asia; Car Phone; Communication; Computer software; Data; Data Collection; Detection; Development; Devices; Enrollment; Evaluation; Expenditure; Frequencies; Funding; Goals; Heart Rate; Hip region structure; Individual; Internet; Laboratories; Life; Location; Machine Learning; Maintenance; Marketing; Measurement; Measures; Monitor; Motion; Participant; Patient Self-Report; Persons; Physical activity; Physical activity scale; Play; Population; Process; Relative (related person); Research; Research Personnel; Resolution; Running; Sampling; Shoes; Side; Software Design; Sports; System; Technology; Telephone; Testing; Time; Training; United States National Institutes of Health; Validation; Walking; Wireless Technology; cost; design; ergonomics; open source; prototype; remote sensor; sensor; social; software development; software systems

DESCRIPTION (provided by applicant): The primary aim of this U01 project is the technical development, deployment, and evaluation of hardware and software technology that will enable population-scale, longitudinal measurement of physical activity using common mobile phones. Mobile phones available in Asia and soon in the U.S. already include internal accelerometers and low-power wireless communication capabilities. This study will investigate how to use these computing devices for accurate measurement of physical activity type, intensity and bout duration. By exploiting consumer expenditures on phones that many Americans will purchase, maintain, and carry, it may be possible to run large-scale studies where the physical activity of hundreds of thousands of participants is measured and remotely monitored for months or years at an affordable cost. Wireless accelerometers designed at MIT will be redesigned so that they can send data to common mobile phones available in 2011. Laboratory testing using the current version of the sensors will be used to compare the relative information gain that can be obtained by combining the phone accelerometer data and data obtained by wearing one or more wireless sensors on different convenient body locations (e.g., in a watch or bag, on a shoe, at the hip, etc.). Optimal but practical configurations of accelerometers will be determined so that software running on the mobile phone can automatically detect specific physical activities such as brisk walking, running, cycling, climbing stairs, sweeping, playing sports, etc. Technical challenges that will be addressed by the sensor and software design include, (1) obtaining practical battery life, (2) acquiring physical activity data at high temporal resolution, (3) enabling person-specific customization of the detection algorithms, (4) addressing practical end-user concerns about ergonomics, comfort, and social acceptability, (5) permitting real-time and low-cost remote monitoring and maintenance for studies with hundreds of thousands of phone users, and (4) enabling use of other off-the-shelf sensor devices, such as heart rate monitors, as they become available. A participatory design process will be employed to develop strategies for obtaining longitudinal compliance from typical phone users. After two rounds of iterative technical development, each with laboratory validation conducted at Stanford, the technology will be deployed with 50 typical phone users for 10 months. Validity relative to self report, acceptability, and longitudinal compliance will be measured.

描述（由申请人提供）： 该U01项目的主要目的是对硬件和软件技术的技术开发，部署和评估，该技术将使用常见的手机对体育活动进行纵向测量。亚洲和美国不久的将手机提供的手机已经包括内部加速度计和低功率无线通信功能。这项研究将研究如何使用这些计算设备来准确测量体育活动类型，强度和回合持续时间。通过在许多美国人将购买，维护和携带的手机上利用消费者支出，可以进行大规模研究，在这些研究中，测量了数十万参与者的体育活动，并以负担得起的成本进行了数月或几年的远程监控。在MIT设计的无线加速度计将进行重新设计，以便它们可以将数据发送到2011年可用的常见手机。实验室测试使用当前版本的传感器进行比较，比较可以通过将手机加速度计数据和通过在不同方便的身体位置上戴上一个或多个的无线传感器来获得的相对信息增益（例如，在sho中，请在sho或bag上戴上一个或多袋）。将确定加速度计的最佳但实用的配置，以便在手机上运行运行的软件可以自动检测特定的体育活动，例如快速步行，跑步，跑步，骑自行车，攀爬楼梯，清扫楼梯，扫地，运动运动等。传感器和软件设计将解决的技术挑战，包括获得实用的电池寿命，（2）获得较高的物理活动，（2）（2）3（2）3（2）3（2）3（2）3（2）3（2）3（2）3（2）3（2）（2）3（2）3（2）3（2）3（2）3（2）3（2）3（2）3（2）3（3）算法（4）解决对人体工程学，舒适性和社会可接受性的实践最终用户的关注，（5）允许与数十万电话使用者进行实时和低成本的远程监控和维护，以及（4）启用使用其他现成的传感器设备（例如心脏评估）的使用，例如可用的心脏速率监控器。将采用参与性设计过程来制定策略来获得典型电话使用者的纵向合规性。经过两轮迭代技术开发，每次都在斯坦福大学进行了实验室验证，该技术将与50个典型的电话用户一起部署10个月。相对于自我报告，可接受性和纵向依从性的有效性将被衡量。