使用微技术和富里埃变换来分析职业足球运动中的有效活动时间
José M Oliva-Lozano1, Paweł Chmura2, Paulino Granero-Gil3
1Health Research Centre, University of Almería, Almería, Spain.
Journal of strength and conditioning research
|October 10, 2023
概括
快速里埃转换 (FFT) 准确地测量了职业足球中的有效活动时间,与步骤和距离等外部负载指标有很强的相关性. 有效的活动时间因比赛期间和球员位置而异,为训练个性化提供了洞察力.
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:
- 有效的活动时间对于了解职业足球运动员的运动量至关重要.
- 标准的外部负载参数可能无法完全捕捉游戏活动的细微差别.
- 微技术为更精确的性能分析提供了潜力.
研究的目的:
- 调查快速富里埃变换 (FFT) 对于分析职业足球中有效活动时间的实用性.
- 探索FT衍生有效活动时间和标准外部负载参数之间的关系.
- 分析职业足球比赛期间有效活动时间的时间和位置变化.
主要方法:
- 使用惯性传感器 (加速计,陀螺仪,磁力计) 和全球定位系统 (GPS) 来收集数据.
- 分析了35场职业足球比赛,将每场比赛分为15分钟的时间段,包括额外的时间.
- 应用快速里埃转换 (FFT) 来跟踪系统数据以进行有效的活动时间分析.
主要成果:
- 金融交易所的持续时间与外部负载变量有很强的正相关性 (p < 0.001).
- 总步数和所行的距离是有效活动时间的重要预测指标 (R2 = 0.97).
- 平均有效活动时间约为48.69分钟,根据比赛时间和球员位置有很大差异.
结论:
- 快速里埃转换持续时间是足球有效活动时间的代表性指标.
- 实际活动时间在整个比赛中波动,并且在各个比赛位置上有所不同.
- 研究结果可以为个性化的训练计划提供信息,并加强专业足球运动强度监测.
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