Validation of a video-based performance analysis system (Mediacoach®) to analyze the physical demands during matches in LaLiga
The aim of the present study was to assess the accuracy of a multi-camera tracking system (Mediacoach) to track elite football players movements in real time. A total of 207 observations of 38 official matches from Liga 1, 2, 3 (2nd Spanish Division, season 2017/18) were included in the study (88 de...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad de Castilla-La Mancha |
| Repositorio: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/40077 |
| Acceso en línea: | https://doi.org/10.3390/s19194113 https://www.mdpi.com/1424-8220/19/19/4113 https://hdl.handle.net/10578/40077 |
| Access Level: | acceso abierto |
| Palabra clave: | Football GPS Match-tracking Physical demands Time-motion analysis |
| Sumario: | The aim of the present study was to assess the accuracy of a multi-camera tracking system (Mediacoach) to track elite football players movements in real time. A total of 207 observations of 38 official matches from Liga 1, 2, 3 (2nd Spanish Division, season 2017/18) were included in the study (88 defenders, 84 midfielders, and 35 attackers of the same team). Total distance (TD, m) distance in zone 4 (DZ4) at a speed of 14–21 km/h, distance in zone 5 (DZ5) at a speed of 21–24 km/h (DZ5), distance in zone 6 (DZ6) at a speed of =24 km/h, maximum speed (km/h), and number of sprints (actions above 24 km/h) were registered with the Apex GPS system (STATSports, Newry, N. Ireland) and Mediacoach semi-automatic tracking system (LaLiga, Madrid, Spain). The level of agreement between variables estimated by the two systems was analyzed. Bias was also calculated by deducting the GPS estimated value from the video estimated value, and then dividing the difference score by the GPS estimated value. |
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