在高g和低g加速度计之间评估协议,用于测量跨越一系列运行速度的 acceleration
Jasper Wong1, Hannah E Wyatt1,2,3, Chris Whatman1
1Sports Performance Research Institute New Zealand, Auckland University of Technology, Auckland, New Zealand.
Sports biomechanics
|October 10, 2025
概括
推使用高g加速度计来测量在跑步时的 acceleration (TA). 它们的性能与低g传感器相提并论,并避免了低g设备常见的数据剪切问题.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 可穿戴技术可穿戴技术
背景情况:
- 现代惯性测量单位 (IMU) 使用具有不同规格的多个加速度计.
- 之前的研究已经采用高g和低g加速度计来测量跑步期间的 acceleration (TA) 峰值.
- 使用不同的加速度计类型可能会导致数据处理不一致.
研究的目的:
- 评估高g和低g加速度计之间在量化峰值轴和结果TA方面的一致性.
- 为了在各种运行速度的频谱中评估这种协议.
主要方法:
- 100名休跑步运动员参与了这项研究.
- 参与者在田径赛道上以自选的五种速度跑,从慢到快.
- 使用高g和低g加速度计测量了峰值轴和结果TA.
主要成果:
- 高g和低g加速度计之间的协议显示出与TA大小的曲线关系.
- 在更高的TA值时,bias向高g加速度计转移.
- 差异仅在测量轴向TA在最大范围 (16g) 附近时超过±1g.
- 在低g加速度计中,数据剪切频繁发生 (42%的试验).
结论:
- 高g和低g加速度计在运行时测量TA时表现相似.
- 建议使用高g加速度计,仅用于在跑步期间测量TA.
- 独家使用高g加速度计简化了数据收集和处理.
- 避免使用低g加速度计可以缓解与数据剪切相关的问题.
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