Intra-participant reliability of different models of GPS devices implemented in a 7-a-side soccer match
The aim of this study was to assess the intra-participant reliability of three models of GPS (global positioning system) devices: MinimaxX (Catapult Innovations, Australia), SPI10 and WiSPI (GPSports, Australia) operating at a sampling rate of 5, 1 and 1 Hz, respectively. Distances traveled were mea...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2010 |
| País: | España |
| Institución: | Universidad Católica San Antonio de Murcia (UCAM) |
| Repositorio: | RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia |
| OAI Identifier: | oai:repositorio.ucam.edu:10952/6380 |
| Acceso en línea: | http://hdl.handle.net/10952/6380 https://doi.org/10.12800/ccd.v5i14.97 |
| Access Level: | acceso abierto |
| Palabra clave: | GPS technology Soccer Tecnología GPS Aanálisis del movimiento Fiabilidad Reliability Time-motion analysis Fútbol |
| Sumario: | The aim of this study was to assess the intra-participant reliability of three models of GPS (global positioning system) devices: MinimaxX (Catapult Innovations, Australia), SPI10 and WiSPI (GPSports, Australia) operating at a sampling rate of 5, 1 and 1 Hz, respectively. Distances traveled were measured at different intensities for 5 soccer players (age: 20.1 ± 1.2 years; height: 176.3 ± 9.9 cm, weight: 63.5 ± 8.4 kg) in a training match lasting 33 min, played on a 7-a-side soccer field. The teams were composed of 6 field players and a goalkeeper. The average total distance traveled (DT) was 3288.8 m according to the MinimaxX models, 3050.5 m according to the WiSPI and 3247.5 m according to the SPI10. The maximum speed obtained by each model was 30.3 km·h-1 for the MinimaxX devices, and 25.1 and 25.2 km·h-1 for the WiSPI and SPI10 devices, respectively. The coefficient of variation (CV) was estimated between the three models of devices that were studied for the distance traveled in each of the 4 levels of speed as well as for the total distance, and the average and maximum speed. The sample size was the main limitation of the study. Based on our results we conclude that the different devices have a high reliability for measuring the total distance and the distances covered in low-speed categories. However, it is observed that the speed of travel during the game affects the reliability of the different devices, increasing the dispersion of the obtained measurements (CV) as the running speed increases, especially when it exceeds the speed of 13 km·h-1. |
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