连续相对相位角度和可变性:在跑步机上长距离跑步和地面跑步时,对持续时间和表面影响的交叉分析.
Zaheen Ahmed Iqbal1,2, Indy Man Kit Ho3, Daniel Hung-Kay Chow1
1Department of Health and Physical Education, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong, ied.edu.hk.
Applied bionics and biomechanics
|December 22, 2025
概括
长途跑步协调适应表面和持续时间,特定的关节合随着时间的推移而变化. 协调模式,而不是可变性,对这些运行条件很敏感.
科学领域:
- 生物力学 生物力学
- 人类运动科学科学 人类运动科学
- 运动科学 运动科学 运动科学
背景情况:
- 运行协调对于适应各种环境至关重要.
- 对于长时间在不同表面跑步如何影响下肢协调和可变性的理解有限.
- 连续相对相位 (CRP) 和它的变化是量化运行协调的关键指标.
研究的目的:
- 为了比较在跑步机上长时间跑步期间下肢协调和变化,与地面表面相比.
- 研究运行时间和表面类型对角平面运动模式的影响.
- 为了确定协调或可变性是否对运行条件的变化更敏感.
主要方法:
- 十一个健康的成年人完成了31分钟的跑步,在跑步机和地面表面上以首选的速度跑.
- 七个欧帕尔运动监测惯性测量单元收集了动力学数据.
- 连续相对相位 (CRP) 和其变异性在初始和最终的5分钟间隔内,在立场和摆动阶段内被分析.
主要成果:
- 总的来说,跑步时间和跑步面积并没有显著改变整个步行周期的协调.
- 在最后5分钟的姿势阶段,脚-膝盖协调增加.
- 在地面运行期间,在膝盖-部和脚-膝盖合物中观察到表面对持续时间的相互作用.
- 在最后5分钟的摇摆阶段,关节和部协调在两个表面上都增加了.
- 协调变化在整个步行周期阶段和条件中保持一致.
结论:
- 不同于变性,下肢协调模式更适应跑步时间和跑面的变化.
- 这些发现强调了在生物力学评估和步行优化中考虑外部运行条件的重要性.
- 特定的关节合器对长时间的运行和表面变化表现出敏感性,特别是在立场和摇摆阶段.
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