测量因足球球向导致的次震荡冲击引起的电生理变化
Geoffrey Brookshire1, Angelo Pennati1, Keith J Yoder1
1SPARK Neuro Inc., New York, NY, United States.
Frontiers in neurology
|March 21, 2025
概括
足球比赛的头部冲击可能会影响大脑健康. 这项研究使用机器学习对脑电图 (EEG) 来检测方向后大脑活动的变化,显示客观影响评估的潜力.
科学领域:
- 神经科学是一个神经科学.
- 运动医学 运动医学
- 生物医学工程 生物医学工程
背景情况:
- 在像足球这样的体育运动中常见的次脑震荡头部冲击对长期的大脑健康和认知构成风险.
- 目前的临床方法缺乏客观的工具来评估个体次震荡冲击的神经效应.
- 了解对重复的头部冲击的生理反应对于制定预防策略至关重要.
研究的目的:
- 开发和验证一种机器学习分类器,用于检测足球球向的次震冲击后大脑中的电生理变化.
- 为了研究脑活动变化的时间动态,次脑震后的头部冲击.
- 探索电脑电图 (EEG) 作为一个客观生物标志物的潜力,用于评估脑震荡下头部创伤的影响.
主要方法:
- 记录了足球运动员在重复的足球定位之前和之后的脑电图 (EEG) 数据.
- 训练有素的机器学习分类器来区分影响前和影响后的EEG模式.
- 控制与体力炼相关的电生理学变化,以隔离标题的影响.
主要成果:
- 机器学习分类器准确地区分了撞击后的EEG记录与基线在撞击后1小时和24小时.
- 考虑到炼效应后,可归因于足球比赛的显著EEG变化可以在24小时后检测到,但不能在1小时后.
- 观察到的EEG变化的时间进程与创伤性脑损伤中观察到的炎症反应模式一致.
结论:
- 脑电图的机器学习分析显示,它有望用于检测次震荡头部冲击的电生理后果.
- 这些发现表明,基于EEG的监测可能成为评估运动员大脑影响影响的客观工具.
- 需要进一步的研究来完善这种方法,并确定其在运动中管理头部冲击的临床实用性.
相关概念视频
Motional Emf
3.3K
Magnetic flux depends on three factors: the strength of the magnetic field, the area through which the field lines pass, and the field's orientation with respect to the surface area. If any of these quantities vary, a corresponding variation in magnetic flux occurs. If the area through which the magnetic field lines are passing changes, then the magnetic flux also changes. This change in the area can be of two types: the flux through the rectangular loop increases as it moves into the...
3.3K
Induced Electric Fields: Applications
2.7K
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
2.7K
Electromagnetic Waves
10.3K
James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws...
10.3K
Magnetic Damping
1.3K
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
1.3K
Measuring Acceleration Due to Gravity
1.4K
Consider a coffee mug hanging on a hook in a pantry. If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die out.
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
1.4K
Motion of a Projectile
4.0K
Projectile motion becomes evident when a player kicks the ball into the air. The launch angle, or the angle at which the ball is kicked, plays a crucial role in determining the trajectory of the projectile. As the ball soars through the air, influenced solely by gravity, its motion can be dissected into two independent velocity components: the horizontal and the vertical.
Horizontal motion, governed by the initial kick, maintains a constant velocity throughout the flight of the soccer ball.
Horizontal motion, governed by the initial kick, maintains a constant velocity throughout the flight of the soccer ball.
4.0K


