Sensors, Vol. 19, Pages 4113: Validation of a Video-Based Performance Analysis System (Mediacoach ®) to Analyze the Physical Demands during Matches in LaLiga

Sensors, Vol. 19, Pages 4113: Validation of a Video-Based Performance Analysis System (Mediacoach®) to Analyze the Physical Demands during Matches in LaLiga Sensors doi: 10.3390/s19194113 Authors: Jose Luis Felipe Jorge Garcia-Unanue David Viejo-Romero Archit Navandar Javier Sánchez-Sánchez 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. All variables showed high ICC values (>0.7...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research