不同强度的运动对跑步者的关节和协调模式的规律性的直接和长期影响
Mariana R C Aquino1, Richard E A van Emmerik2, Priscila Albuquerque de Araújo1
1Graduate Program of Rehabilitation Sciences, Department of Physical Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil.
Journal of biomechanics
|January 10, 2025
概括
跑步者在跑步后表现出较少的适应性运动模式,以减少脚-膝盖协调规律为准. 这种改变的协调持续存在,这表明疲劳甚至在运动后48小时也会影响运动.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
背景情况:
- 跑步者的恢复不足可能会增加由于疲劳引起的运动模式变化而导致的受伤风险.
- 在功能任务中评估运动动态对于理解疲劳影响至关重要.
- 下肢关节和协调模式是训练压力的敏感指标.
研究的目的:
- 为了研究中等和高强度跑步在单腿坐期间对下肢关节和协调模式的直接和长时间影响.
- 为了比较动力学分析的灵敏度与检测运动诱导疲劳的协调规律性.
主要方法:
- 一项交叉研究涉及30名健康跑步者进行中等和高强度跑步和对照条件.
- 评估脚,膝盖和关节的角度和连续相对相位 (协调) 在60秒的单腿位任务中,在测量时间之前,之后,24小时和48小时.
- 使用统计参数映射 (SPM) 分析时间规范曲线和双向ANOVA用于协调 (规律性).
主要成果:
- 在两个运行方案后立即观察到下脚-膝关节协调 (增加规律性).
- 脚和膝盖关节角的规律性增加持续至运动后48小时,表明正在进行恢复.
- 对时间规范化动力学的SPM分析没有检测到运行协议的显著影响.
结论:
- 在单腿坐时评估协调规律是一种敏感的方法,用于跟踪跑步者的炼和疲劳影响.
- 运动后协调规律性减少表明运动模式不太适应,可能会增加受伤风险.
- 运动协调模式为恢复状态提供了洞察力,即使传统的动力学分析显示没有显著变化.
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