结合TRACAB的Gen5和媒体教练系统计算职业足球加速和减速的有效性
Joaquín González-Rodenas1, Fabio Nevado2, Roberto López-Del Campo2
1Sport Sciences Research Centre, Rey Juan Carlos University, 28942 Fuenlabrada, Spain.
Sensors (Basel, Switzerland)
|April 28, 2025
概括
与GPS-IMU设备相比,TRACAB Gen5视频跟踪系统低估了足球运动员的加速和减速. 虽然总体上达成一致性很高,但建议对高强度数据保持谨慎,表明它们在物理负载评估中不可互换.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 绩效分析 绩效分析
背景情况:
- 准确测量球员的体力负荷在职业足球中至关重要.
- 光学视频跟踪和GPS-惯性测量单元 (IMU) 设备通常用于此目的.
- 评估这些技术之间的协议对于有效的数据解释至关重要.
研究的目的:
- 评估TRACAB Gen5光学视频跟踪系统 (配备Mediacoach软件) 和GPS-IMU设备之间的协议.
- 为了比较在职业足球比赛中的加速度 (ACC) 和减速 (DEC) 的测量.
- 为了确定视频跟踪系统是否可以与GPS-IMU交替使用,以评估玩家的物理负载.
主要方法:
- 在三个赛季 (2021-2024) 中收集了46名职业足球运动员的数据.
- 对比了662个匹配数据集,分析了来自GPS-IMU的95,371个ACC和100,952个DEC (参考标准).
- 使用统计分析来评估协议,并量化两个系统之间的差异.
主要成果:
- 与GPS-IMU相比,TRACAB系统报告的ACCs (p < 0.001,d = 0.47) 和DECs (p < 0.001,d = 1.17) 显著低于GPS-IMU.
- 对于总ACC (R2 = 0.954) 和DEC (R2 = 0.950),以及适度强度,发现了非常高的一致性.
- 在高强度ACC (R2 = 0.338) 和DEC (R2 = 0.838) 中观察到较低的协议.
结论:
- 与Mediacoach软件一起的TRACAB Gen5系统对于评估足球中的一般体力负荷是有效的.
- 然而,与GPS-IMU相比,该系统系统地低估了加速和减速.
- 来自TRACAB系统的数据不应与GPS-IMU互换使用,特别是对于高强度运动.
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