一个新的指数来评估基于记分分析的运行协调
Jesús Martínez-Sobrino1, José Antonio Navia2, Juan Del Campo-Vecino3
1Departamento de Deportes, Universidad Politécnica de Madrid, Madrid, Spain.
Journal of sports science & medicine
|December 4, 2023
概括
一个新的运行协调指数,%的协调,有效地跟踪运动组织的变化. 这种可靠的指标有助于评估竞争运动员在不同速度的跑步技巧.
科学领域:
- 生物力学 生物力学
- 人类运动分析 人类运动分析
背景情况:
- 了解跑步协调对于优化运动表现至关重要.
- 现有的指标可能无法完全捕捉跑步期间下肢运动的动态相互作用.
研究的目的:
- 引入和定义一个新的指数来量化运行协调,称为%的协调.
- 为了确定%的协调功能是否与运行速度相对的顺序参数.
- 在评估跑步技巧时评估%的协调的可靠性和实用性.
主要方法:
- 高速 (240赫兹) 横向拍摄12名中距离跑步运动员 (6名男性,6名女性).
- 对六个关键的下肢比赛的标记分析,包括轻松,5000米步伐和冲刺速度.
- 计算%的协调和职责因子,严格的内部和跨运营商可靠性检查.
主要成果:
- 跑步速度显著影响了步伐长度,步伐频率和%的协调 (所有p < 0.001).
- %的协调表现出一个渐进的增长与更高的运行速度 (η2p = 0.77).
- 随着行驶速度的增加,任务因子逐渐减少 (R2c = 0.86),协调的百分比因步伐阶段而异.
结论:
- 协调指数的百分比可靠地量化了运行运动组织的变化.
- 这一新指数是评估竞争运动员跑步技巧的实用工具.
- 这些发现支持%的协调是进行生物力学研究的一个有价值的参数.
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