BioVetMed & SportSci Research Group, Department of Physical Activity and Sport, University of Murcia , Murcia , Spain.
Doctoral Student in Sport Science. Physical Activity and Sport Department. University of Extremadura , Caceres , Spain.
Eur J Sport Sci. 2019 Oct;19(9):1157-1165. doi: 10.1080/17461391.2019.1584248. Epub 2019 Mar 28.
Current studies have reported high accuracy in global positioning system (GPS) and recently developed ultra-wideband (UWB)-based tracking systems for monitoring time - motion patterns. The accuracy and reliability of both systems may be different in tactical analysis application, an aspect that has never been studied previously. The aims of the present study were: (i) to determine and compare the accuracy of GPS and UWB technologies in soccer players' positions (ii) to compare the tactical application of both systems. Following institutional ethical approval and familiarisation, 14 well-trained soccer players performed tests around five courses: (a) field perimeter, (b) halfway line, (c) centre circle, (d) perimeter of the penalty area, and (e) semicircle penalty area. Also, a small-sided game was played monitored with WIMUPRO™ to determine real and practical differences in accuracy of both systems in tactical analysis. For the GPS, the mean absolute error ( = 9445) of "" and "" coordinates was 41.23 ± 17.31 cm and 47.6 ± 8.97 cm, respectively. For UWB, it was 9.57 ± 2.66 cm and 7.15 ± 2.62 cm. The results of the "" and "" accuracy comparison were significantly lower in all cases (< 0.05) with an ES of 0.78 and 0.95, respectively. In a real practical application, the differences of both systems reached 8.31% in typical tactical variables (ES = 0.11). In contrast to GPS-10Hz, UWB WIMUPRO™-20 Hz has been demonstrated to be an acceptable technology to estimate the position of players on the pitch with high accuracy and be a useful, automatic, and portable instrument for tactical analysis measurement.
目前的研究报告表明，全球定位系统（GPS）和最近开发的超宽带（UWB）跟踪系统在监测时间-动作模式方面具有很高的准确性。这两种系统在战术分析应用中的准确性和可靠性可能不同，但这方面以前从未被研究过。本研究的目的是：（i）确定和比较 GPS 和 UWB 技术在足球运动员位置上的准确性；（ii）比较这两种系统的战术应用。在获得机构伦理批准和熟悉操作流程后，14 名训练有素的足球运动员在五个场地进行了测试：（a）场地周边，（b）中线，（c）中圈，（d）禁区周边，（e）禁区半圆。此外，还进行了一场小型比赛，使用 WIMUPRO™进行监控，以确定这两种系统在战术分析中的准确性的实际差异。对于 GPS，“X”和“Y”坐标的平均绝对误差（ = 9445）分别为 41.23 ± 17.31 cm 和 47.6 ± 8.97 cm。对于 UWB，它分别为 9.57 ± 2.66 cm 和 7.15 ± 2.62 cm。在所有情况下，“X”和“Y”坐标的准确性比较结果均显著较低（<0.05），ES 值分别为 0.78 和 0.95。在实际应用中，两种系统的差异在典型战术变量中达到 8.31%（ES = 0.11）。与 GPS-10Hz 相比，UWB WIMUPRO™-20Hz 已被证明是一种可接受的技术，可以高精度地估计球场上球员的位置，并且是一种有用的、自动的、便携式战术分析测量工具。
