全球导航卫星系统的原始定制处理数据的有效性,在多天的直线冲刺中进行直线冲刺
Zachary L Crang1, Grant Duthie2, Michael H Cole1
1School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, QLD, Australia.
Journal of science and medicine in sport
|January 9, 2024
概括
全球导航卫星系统 (GNSS) 设备在测量速度和加速方面表现出强大的有效性. 这些可穿戴技术在多次测试中提供可靠的性能.
科学领域:
- 运动科学和生物力学
- 可穿戴技术和性能分析
- 人类运动和绩效测量
背景情况:
- 准确测量瞬间速度和加速对于体育表现分析至关重要.
- 全球导航卫星系统 (GNSS) 设备越来越多地用于运动员跟踪,但它们的有效性需要严格的评估.
- 了解GNSS设备在不同会话中的可靠性对于一致的数据收集至关重要.
研究的目的:
- 为了确定从GNSS设备获得的瞬间速度和加速度测量的有效性.
- 为了评估这些测量的有效性在多次测试过程中的变化.
- 将不同的GNSS设备 (Statsports Apex Pro和Catapult Vector S7) 的性能与标准测量进行比较.
主要方法:
- 采用了一种重复措施设计.
- 十名参与者在三天内进行了冲刺和节奏变化练习.
- 10赫兹GNSS设备 (Statsports Apex Pro,Catapult Vector S7) 与高频速度激光 (MuscleLab LaserSpeed) 进行了比较,作为标准测量.
主要成果:
- 根平均平方误差 (RMSE) 表明GNSS设备与速度 (0.14-0.21 m·s−1) 和加速 (0.22-0.47 m·s−2) 的标准测量之间存在强烈一致.
- 在两种设备和所有移动中,在两天之间观察到有效率的小变化.
- 在速度和加速误差之间发现了负线性关系,随着速度的增加,误差会增加.
结论:
- 来自Statsports (Apex Pro) 和Catapult (Vector S7) 的可穿戴GNSS设备证明了适合测量瞬时速度和加速的有效性.
- 这些设备的有效性在多天内是一致的,尽管会话之间可能会发生轻微的变化.
- 性能可能在整个速度谱中略有差异,特别是在更高的速度.
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