在循环运动中的联合时刻对不对称的三维分析方法
Ezequiel Martín-Sosa1, Juana Mayo2, Joaquín Ojeda2
1Departamento de Ingeniería Minera, Mecánica, Energética y de la Construcción, Escuela Técnica Superior de Ingeniería, Universidad de Huelva, Huelva, Spain.
Frontiers in bioengineering and biotechnology
|January 22, 2026
概括
骑自行车时下肢关节运动时刻不对称,特别是在正面和横向平面,随着踩踏功率的增加而减少. 对三个指数的综合分析提供了对这些不平衡的全面了解.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 人类运动分析 人类运动分析
背景情况:
- 骑自行车时肢体间的不平衡会损害表现,增加受伤风险.
- 之前的研究主要集中在斜面平面不对称性上,忽视了正面和横面平面.
- 三维分析对于完全理解自行车生物力学至关重要.
研究的目的:
- 为了分析骑自行车时的三维下肢关节时刻不对称性.
- 为了研究踏板功率对这些不对称度的大小的影响.
- 引入和验证用于量化不对称性的新型指标.
主要方法:
- 为十名业余骑自行车者采用了三维运动捕捉系统.
- 使用规范对称指数 (NSI),交叉相关系数 (CCC) 和周期间不对称指数 (ADC) 的量化不对称.
- 在三个不同的功率条件下评估了骑自行车的人.
主要成果:
- 对NSI,CCC和ADC的联合应用对于完全的不对称性评估是必要的.
- 在正面和横向平面中观察到最大的不对称性.
- 随着踩踏功率的增加,不对称的大小下降.
结论:
- 额面和横面平面不对称性在自行车运动中很重要,并且依赖于功率.
- 结合NSI,CCC和ADC的使用提供了对自行车不对称性的全面了解.
- 这种方法为整个踏板周期的不平衡提供了机械的洞察力.
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