相关实验视频
Updated: Jan 15, 2026
07:51
Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
Published on: March 14, 2017
17.2K
全球定位系统和智能手机技术,以实践测量社区在医疗保健中的流动性
Sara Nataletti1,2, Megan K O'Brien1,2,3, Rachel Maronati1
1Max Nader Center for Rehabilitation Technologies and Outcomes Research, Shirley Ryan AbilityLab, Chicago, IL, USA.
Digital biomarkers
|October 9, 2025
概括
这项研究开发了一个使用智能手机的数字框架,以测量中风和下肢截肢患者的社区流动性. 该技术准确地预测功能结果,改善康复评估.
科学领域:
- 康复医学 康复医学 康复医学
- 数字健康数字健康
- 生物医学工程 生物医学工程
背景情况:
- 在物理医学和康复中,恢复社区的流动性至关重要.
- 目前用于测量现实世界移动性的方法有限,阻碍了治疗评估.
- 对于中风后或下肢截肢 (LLA) 患者,需要对社区流动性的客观评估.
研究的目的:
- 开发和验证一个监测社区流动性的数字框架.
- 用智能手机数据估计慢性中风或LLA患者的临床功能.
- 建立一种可靠的方法来评估现实世界的流动性和治疗有效性.
主要方法:
- 90名慢性中风或LLA患者参加了3-9个月的远程监测.
- 收集的数据包括智能手机的GPS和步数,以及标准的临床评估.
- 分析涉及到表征流动性,评估干预效应,开发预测模型,并确定可靠预测的数据充足度.
主要成果:
- 社区流动性表现出显著的个人和团体层面的变化.
- 一个案例研究显示,干预后活动和运动多样性增加.
- 机器学习模型使用仅14天的数据准确预测了6分钟步行测试和10米步行测试得分 (7-10%的错误).
- 经过3-6天的监测,可靠的功能结果预测是可能的.
结论:
- GPS和智能手机监控提供了一种可行和可扩展的方法来评估现实世界的移动性.
- 这种数字方法可以弥合社区环境中评估治疗影响的差距.
- 它减少了对频繁的面对面评估的需求,提高了康复护理.
相关概念视频
01:28Field Application of Global Positioning System
320
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
320
01:30Types of Global Positioning System Surveys
347
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
347
01:30Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
378
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
378
01:30Introduction to Global Positioning System
462
The Global Positioning System (GPS) revolutionized positioning on Earth, providing precise location data through satellite ranging. The GPS system was developed in 1978 by the U.S. Department of Defense for military use, and it became available for civilian applications in 1983, transforming fields including navigation, fleet management, and time synchronization for telecommunications systems.GPS consists of satellites in medium Earth orbit, about 20,200 kilometers above the surface,...
462
01:26Errors in Global Positioning System
332
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
332
01:29Issues And Trends In Healthcare Delivery System
6.1K
The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
6.1K