全球定位系统设备的同时协议和测试-测试可靠性,用于测量精英青年学院足球运动员最大水平减速能力
Lewys H Jones1,2, Cedric Leduc3,4, Kurt Greatorex1
1Academy Performance Department, Crystal Palace FC, London, United Kingdom.
概括
全球定位系统 (GPS) 设备提供了一种可靠且具有成本效益的方法来评估运动员的最大水平减速能力,与雷达技术相提并论. 这允许在团队运动中有效测量平均减速 (DECAve) 和最大减速 (DECMax).
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 人类运动分析 人类运动分析
背景情况:
- 精确测量减速能力对于团队运动中的性能分析和伤害预防至关重要.
- 使用雷达设备的传统方法是有效的,但可能昂贵且难以获得.
- 全球定位系统 (GPS) 技术已经成为运动分析的潜在替代方案.
研究的目的:
- 为了评估10赫兹GPS设备和47赫兹雷达设备之间的并发协议,用于测量最大水平减速.
- 评估GPS衍生减速变量 (DECMax,DECAve,停止时间,停止距离) 的测试-重新测试可靠性.
主要方法:
- 32名男优青年学院足球运动员参与了这项研究.
- 使用GPS (10Hz) 和雷达设备 (47Hz) 测量了最大水平减速能力.
- 使用布兰德-阿尔特曼分析和同等性测试来评估同时达成的协议;使用类内相关性和变化系数来评估测试复试可靠性.
主要成果:
- 同等性测试证实,与雷达测量相比,GPS衍生平均减速 (DECAve) 和最大减速 (DECMax) 在可接受的范围内.
- 对于DECMax,GPS设备表现出良好的测试-重新测试可靠性 (类内相关性=0.84.86,变化系数%=4.505.48).
- GPS数据显示与关键减速指标的标准雷达测量有很强的一致性.
结论:
- 10赫兹GPS设备为雷达技术提供了有效和可靠的替代方案,用于评估团队运动运动员最大水平减速能力.
- 来自GPS的减速变量 (DECAve和DECMax) 可以被从业者自信地使用.
- 全球定位系统 (GPS) 为监测运动员减速能力提供了更具成本效益和更容易获得的解决方案.
相关概念视频
Electronic Distance Measuring Instruments
771
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
771
Introduction to Global Positioning System
826
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,...
826
Field Application of Global Positioning System
401
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...
401
Types of Global Positioning System Surveys
502
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...
502


