相关实验视频
Updated: May 30, 2025

07:08
Modified Drop Tower Impact Tests for American Football Helmets
Published on: February 19, 2017
10.9K
在高中美国足球中对头部撞击频率,严重程度,类型和位置的基于位置的评估
Amirhossein Bagherian1, Alireza Abbasi Ghiri2, Mohammadreza Ramzanpour1
1Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX, United States.
Frontiers in bioengineering and biotechnology
|January 29, 2025
概括
高中橄球运动员,特别是进攻线人和跑卫,经历更频繁和严重的头部冲击. 前部冲击是最常见和最严重的,强调了针对性安全干预的必要性.
科学领域:
- 运动医学 运动医学
- 生物力学 生物力学
- 神经学 神经学
背景情况:
- 以前关于足球中头部冲击的研究主要集中在更高水平,忽视了高中运动员.
- 了解特定位置的头部冲击特征对于制定有针对性的伤害预防策略至关重要.
研究的目的:
- 调查球员位置,冲击位置和冲击类型对高中足球中头部冲击频率和严重性的影响.
- 检查玩家位置如何影响头部冲击位置和类型的分布.
主要方法:
- 利用经过验证的口罩传感器测量了十场比赛中的16名高中球员的头部撞击动力学.
- 采用视频分析来确认撞击细节,并纳入有限元建模来评估大脑组织变形.
- 引入了新的规范化,分类和集群方法来分析影响数据.
主要成果:
- 进攻线人和跑后者持续遭受更严重的头部冲击的更高的正常化频率.
- 额头撞击,通常是头对头碰撞造成的,是最常见和最严重的.
- 在不同玩家位置上观察到不同的撞击位置和撞击类型的不同模式.
结论:
- 调查结果表明,特定的球员位置和影响类型在高中足球中带来更大的风险.
- 结果可以为改进的游戏规则,训练协议和防护设备设计提供信息.
- 需要有针对性的干预措施来减轻高中足球运动员头部伤害风险.
相关概念视频
Types of Impact
488
Impacts can be classified in various forms, primarily under two subgroups: central impact and oblique impact. A central impact occurs when two objects collide head-on, possessing opposite velocities aligned along the line of impact. Conversely, an oblique impact occurs when two objects collide at an angle, resulting in a modification of both direction and velocity.
The coefficient of restitution is a metric for understanding the dynamics of impacts. It quantifies the ratio of relative velocity...
The coefficient of restitution is a metric for understanding the dynamics of impacts. It quantifies the ratio of relative velocity...
488
Impact
135
Impact occurs when two bodies collide, leading to the application of impulsive forces between them. Analyzing impact mechanics involves considering two colliding particles moving along a line known as the line of impact, which passes through their centers and is perpendicular to the contact plane.
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
135

