在初级澳大利亚足球中探索一种新的 tackle 机制框架
Thomas Sutherland1,2, Machar Reid1, Brendan Lay1
1School of Human Sciences (Sport and Exercise Science), The University of Western Australia, Perth, Australia.
Journal of sports sciences
|October 7, 2025
概括
在青少年澳大利亚足球 (AF) 中,攻克随着年龄的增长而增加,老年球员表现出更高的速度和特定的接触类型. 女孩 女孩 女孩 女孩 女孩 女孩 女孩 女孩
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 伤害预防 预防伤害
背景情况:
- 攻克是澳大利亚青少年足球 (AF) 的关键技能,但尽管与受伤有关,但人们对其了解甚少.
- 现有的研究缺乏对初级球员的攻克机制的详细描述.
- 了解不同年龄组和性别的杆机制对于伤害预防策略至关重要.
研究的目的:
- 为澳大利亚青少年足球开发和应用详细的 tackle 机制框架.
- 分析应对变量如何随着年龄的增长而改变男孩,以及性别之间的差异.
- 为了确定与杆相关的特定风险因素,以伤害的初级球员.
主要方法:
- 一个详细的解决机制框架是为澳大利亚青年足球设计的.
- 在28场比赛中随机选择了800次球,每个年龄组 (年龄在9-14岁以下) 每次100次.
- 一般化的线性模型被用来比较跨年龄组 (仅限男孩) 和性别 (年龄匹配) 的应对变量.
主要成果:
- 随着年龄的增长,球变量,如球载体和球员的速度,跳/臂球,第二动作运动,球载体的头部接触和侧面着陆等变量增加了 (P <0.05).
- 年轻的球员与老年球员 (P > 0.05) 的前后和手头接触率相似.
- 年轻的球员不太可能丢弃球 (P = 0.005),与男孩相比,女孩表现出较慢的球速度,更多的球手仍然站立,以及更多的丢球或被扣的球 (P < 0.05).
结论:
- 在青少年澳大利亚足球中,攻克机制随着年龄的增长而演变,在年长的男孩中观察到速度增加和特定的接触模式.
- 年轻的球员和女孩表现出明显的球特征,包括较低的球处置率和不同的接触场景.
- 政策制定者应该考虑针对性的指导和裁判干预,可能包括对女孩进行修改的应对规则,以提高安全性和技能发展.
相关概念视频
01:16Eccentric Loading
902
Eccentric loading is a crucial concept in the study of structural engineering and mechanics, particularly when analyzing the stability and stress distribution in columns. Unlike centric loading, where the force is applied along the centroidal axis, causing uniform compression, eccentric loading occurs when a force is applied off-center. This off-center application introduces not only direct compressive stress but also bending stress, significantly influencing the column's behavior under...
902
01:20Two-Dimensional Force System
1.6K
A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
1.6K
01:28An Introduction to Mechanics
6.8K
Humans have been making ships, shelters, pyramids, weapons, agricultural equipment, and many more items without recording the process or theory behind them for centuries. It would be challenging to document the evolution of mechanics from its origin to the present.
According to records, the history of mechanics starts with Aristotle (384–322 BC). He related mechanics to physical theory, aiming for a universal synthesis.
Newton defined mechanics as the branch of physical science that...
According to records, the history of mechanics starts with Aristotle (384–322 BC). He related mechanics to physical theory, aiming for a universal synthesis.
Newton defined mechanics as the branch of physical science that...
6.8K
01:29Two-Dimensional Force System: Problem Solving
1.2K
Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector analysis and force equilibrium, one can determine the effect of multiple forces acting on an object in a two-dimensional space.
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
1.2K
01:16Design of Transmission Shafts
738
The design of a transmission shaft is governed by two primary specifications: the power it transmits and its rotational speed. These parameters guide the selection of the shaft's material and cross-sectional dimensions, ensuring that the material's maximum shearing stress remains within the elastic limit while transmitting the desired power at the given speed. The system's power is intrinsically linked to the applied torque. The torque applied to the shaft can be calculated by reconfiguring the...
738
01:07Development of the Limb Synovial Joints
2.2K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
2.2K