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双重任务对时空,运动和运动参数的影响以及它们在运行过程中的变化
Hsiang-Ling Teng1, Jo Armour Smith2, Will F W Wu3
1Department of Physical Therapy, California State University, Long Beach, CA, United States.
Gait & posture
|January 24, 2026
概括
跑步时的双重任务 (DT) 减少了运动变化,可能会增加受伤风险. 这项研究发现,无论跑步速度如何,在认知任务期间,关节动力学和动力学的步骤变化减少.
科学领域:
- 生物力学 生物力学
- 发动机控制器的控制器
- 运动科学 运动科学 运动科学
背景情况:
- 跑步通常涉及双重任务 (DT),要求同时使用认知和运动资源.
- 以前的研究表明,DT会影响行走的可变性;它对跑步生物力学的影响不太清楚.
- 运动变化对于跑步者的适应能力和伤害预防至关重要.
研究的目的:
- 研究DT在跑步过程中对时空,运动和运动参数的影响.
- 确定跑步速度是否会影响DT对跑步生物力学的影响.
- 评估DT对跑步步态度参数变化的影响.
主要方法:
- 一项涉及31名无症状跑步者的横截面研究.
- 在跑步机上以自选,缓慢和快速的速度运行时捕获了三维生物力学.
- 参与者在跑步的同时执行认知任务 (简单和困难),动力学和动力学数据分析了平均值和可变性.
主要成果:
- 显著的DT效应被观察到在峰值膝盖引和骨盆ipsilateral下降角度.
- 在DT期间,多个关节角度 (部,膝盖,脚) 和关节时刻 (膝盖绑架器,脚脚下器) 的步骤到步骤变化性显著下降,特别是在艰难的认知任务中.
- 跑步速度并没有显著改变DT对跑步生物力学的影响.
结论:
- 双重任务运行导致关节动力学和动力学中步骤到步骤的变化减少.
- 在DT条件下这种降低的适应能力可能会增加对与跑步有关的伤害的易感性.
- 为全面的伤害预防策略,建议将DT整合到运行评估和培训计划中.
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