一个基于IMU的高频可穿戴系统用于反向运动跳跃评估
Antonio Pousibet-Garrido1,2, Cristina Benavente2,3, Juan A Moreno-Pérez1
1PRIMELab, Department of Electronics and Computer Technology, Centre for Information and Communications Technologies (CITIC-UGR), University of Granada, 18071 Granada, Spain.
Sensors (Basel, Switzerland)
|March 14, 2026
概括
一个新的可穿戴惯性测量单元 (IMU) 系统为体育运动中评估反运动跳跃 (CMJ) 提供了一个便携式解决方案. 这项技术为基于现场的神经肌肉性能监测提供了昂贵的强力平台的可行替代方案.
科学领域:
- 体育科学 运动科学 运动科学
- 生物力学 生物力学
- 可穿戴技术可穿戴技术
背景情况:
- 反运动跳跃 (CMJ) 评估对于监测运动员神经肌肉表现至关重要.
- 传统的部队平台昂贵,缺乏便携性,限制了基于现场的CMJ评估.
- 需要可访问,便携式CMJ评估工具.
研究的目的:
- 开发和验证一个定制的可穿戴惯性测量单元 (IMU) 系统,用于评估反运动跳跃 (CMJ).
- 为CMJ分析提供基于实验室的力量平台提供一个具有成本效益和便携性的替代方案.
- 评估系统在现场设置中的准确性和可靠性.
主要方法:
- 开发一个定制系统,使用一个单一的IMU在下背部,采样1kHz与蓝牙低能耗 (BLE) 通信.
- 实施了一种新的算法,利用垂直加速度的导数来检测跳跃起飞和降落.
- 与19名参与者的119个CMJ试验使用的标准力量平台进行验证.
主要成果:
- IMU系统实现了97.43%的高检测率,用于起飞和着陆时刻,使用最佳的0.2g加速值.
- 与力量平台相比,飞行时间测量显示出一个小的系统低估 (偏差 = -0.0117秒).
- 观察到适度的协议极限,表明实际应用的可接受变化.
结论:
- 开发的可穿戴IMU系统证明了其适合于体育领域的实用,现场的CMJ监测.
- 该系统为评估神经肌肉性能提供了一种便携式且可能更容易获得的方法.
- 用户应考虑与强力平台相比观察到的变异性,特别是对于关键的个人性能决策.
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