骑自行车运动运动变量的分析:一项探索性研究
Lachlan Winter1,2, Clint Bellenger1,2, Paul Grimshaw3,4
1UniSA Allied Health and Human Performance, University of South Australia, Adelaide, SA 5001, Australia.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
惯性测量单元 (IMU) 显示出良好的测试-重新测试可靠性,用于分析循环运动变化. IMU提供了一个便携式且具有成本效益的替代VICON Nexus用于循环分析.
科学领域:
- 生物力学 生物力学
- 体育科学 运动科学 运动科学
- 人类运动分析 人类运动分析
背景情况:
- 了解运动变化对于优化骑自行车的表现和预防伤害至关重要.
- 像VICON Nexus这样的传统运动捕捉系统是有效的,但可能昂贵且不太便携.
- 惯性测量单位 (IMU) 为分析运动动态提供了一个潜在的替代方案.
研究的目的:
- 评估蓝色三角形IMU和VICON Nexus动态建模在循环中用于LyE分析的测试复试可靠性.
- 为了研究LyE在4000米最大循环力度的变化.
- 为了比较IMU和VICON Nexus在分析运动变异性的性能.
主要方法:
- 十二名新手骑自行车者在四场比赛中完成了4000米的最大骑自行车努力.
- IMU被放置在头部,胸部,骨盆和腿部,以测量段加速.
- 维康Nexus采集了使用反射标记的段/关节角动力学.
- 对于IMU加速和VICON Nexus动力学,计算了利亚普诺夫指数 (LyE).
主要成果:
- 无论是IMU还是VICON Nexus,测试-重新测试可靠性在不同体型段中从差到优异.
- 头部和胸部IMU加速的LyE在骑自行车比赛中增加,而骨盆和腿部LyE保持一致.
- 维康Nexus在动力学上显示了会话差异,但没有观察到一致的趋势.
- IMU显示可靠性有所提高,并确定了移动变化的一致趋势.
结论:
- IMU提供了可靠和一致的循环运动运动变异性的分析,特别是在头部和胸部部分.
- 与VICON Nexus相比,IMU是一个更便携和更具成本效益的选择,用于骑自行车的生物力学.
- 需要进行进一步的研究,以充分确定IMU的适用性,以分析在不同骑自行车环境中的运动变化.
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