用滑雪者-滑雪者-雪地相互作用模型对高山滑雪的生物动力学分析
Nan Gao1, Jianqiao Guo2, Huitong Jin1
1Department of Engineering Mechanics, Tsinghua University, Beijing, CHINA.
Medicine and science in sports and exercise
|September 8, 2025
概括
一个新的滑雪者-滑雪者-雪地相互作用 (SSSI) 模型准确地重建了滑雪动态. 这种先进的生物机械模型有助于分析滑雪表现和基于技能的运动模式,以改进技术.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 工程 工程师 工程师 工程师
背景情况:
- 阿尔卑斯山滑雪涉及滑雪者,设备和雪之间复杂的相互作用.
- 了解这些动态对于提高表现和预防伤害至关重要.
- 以前的模型往往缺乏详细的肌肉骨和环境因素的整合.
研究的目的:
- 开发和验证一个全面的滑雪者-滑雪者-雪地相互作用 (SSSI) 模型.
- 为了重建高山滑雪中的动态交互过程.
- 为了能够对滑雪表现和技能依赖的模式进行定量评估.
主要方法:
- 集成了一个3D全身肌肉骨模型,灵活的滑雪,靴子,滑雪接触和空气阻力模型.
- 采集了动力学和动力学数据,使用具有成本效益的IMU,GPS和脚部压力内.
- 利用了前向逆向动力学模拟和优化了滑雪雪互动参数.
主要成果:
- 模拟的滑雪接触力和测量的内底力 (R=0.94) 之间的高度一致性.
- 与GPS数据相比,预测运动轨迹的误差较低 (0.02 ± 0.07 m).与GPS数据相比,预测运动轨迹的误差较低.
- 能够对不同技能水平的滑雪表现进行定量评估.
结论:
- 该SSSI模型有效地描述了跨越各种雪地条件和转技术的滑雪动态.
- 该模型有助于识别阿尔卑斯山滑雪中技能依赖的运动模式.
- 这项研究为提高滑雪表现和技术分析提供了宝贵的见解.
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