在柔性和刚性平脚实验对象的地面反应力分析
Leila Ghazaleh1, Yasin Hoseini2, Faezeh Masoomi1
1Department of Exercise Physiology, Faculty of Sport Sciences, Alzahra University, Tehran, Iran.
Journal of bodywork and movement therapies
|June 14, 2024
概括
与柔性平脚和健康的对照相比,刚性平脚显著增加了步行过程中的峰值制动力和后部力量加载率. 这表明,刚性平脚的改变步态机制可能会影响膝关节的力量.
科学领域:
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
- 步态分析 步态分析
背景情况:
- 平脚是一种常见的足部形,影响着步态机制.
- 在步行过程中,地面反应力 (GRF) 对于了解脚部功能至关重要.
- 在临床评估中,区分刚性平脚和柔性平脚是很重要的.
研究的目的:
- 为了研究三维地面反应力,冲动和加载速率在刚性平脚,柔性平脚和健康控制的个体的步行过程中.
- 为了比较不同类型的平脚和健康群体之间的步态参数.
主要方法:
- 一项比较性研究,涉及20名平脚的年轻女性 (10人刚硬,10人灵活) 和10名健康的女性.
- 使用力板测量地面反应力进行行走分析.
- 使用 MATLAB 和 SPSS 软件进行单向ANOVA (P<0.05) 的统计分析.
主要成果:
- 刚性平脚组的峰值制动力明显高于对照组 (p=0.016) 和柔性平脚组 (p=0.003).
- 在刚性平脚组中,后部力加载率明显高于在柔性平脚组中 (P=0.04).
- 在各组的垂直负载率之间没有发现显著差异 (P>0.05).
结论:
- 刚性平脚与更高的峰值制动力和步行过程中的后部负载率有关.
- 在刚性平脚中增加后部地面反应力可能会导致膝盖前部剪切力增加.
- 这些发现突出了刚性平脚的改变步态动态,可能会影响下肢生物力学.
更多相关视频
10:52Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
Published on: April 13, 2016
8.8K
10:28Kinematics and Ground Reaction Force Determination: A Demonstration Quantifying Locomotor Abilities of Young Adult, Middle-aged, and Geriatric Rats
Published on: February 22, 2011
19.7K
相关概念视频
Static and Kinetic Frictional Force
15.8K
One of the simpler characteristics of sliding friction is that it is parallel to the contact surfaces between systems, and is always in a direction that opposes the motion or attempted motion of the systems relative to each other. If two systems are in contact and moving relative to one another, then the friction between them is called kinetic friction. For example, kinetic friction slows a hockey puck sliding on ice.
However, if two systems are in contact and are stationary relative to one...
However, if two systems are in contact and are stationary relative to one...
15.8K
Rigid Body Equilibrium Problems - I
4.4K
A rigid body is said to be in static equilibrium when the net force and the net torque acting on the system is equal to zero. To solve for rigid body equilibrium problems, do the following steps.
4.4K
