在大满贯网球比赛中,横向终端距离运动概况和射击效率在比赛中发挥作用
Cameron Armstrong1,2, Peter Peeling1,3, Alistair Murphy2
1School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Perth, Australia.
European journal of sport science
|January 14, 2025
概括
精英网球运动员在苛刻的远距离射击中表现出卓越的运动能力. 较高的速度和强烈的加速与射击质量有关,特别是在排名最高的运动员身上. 这项研究量化了网球运动中的关键动力学差异.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 网球分析 网球分析
背景情况:
- 在网球中,终端运动是关键的,但人们对其了解甚少.
- 这些运动涉及高速,减速和加速,影响射击性能.
研究的目的:
- 分析男子大满贯网球比赛中终端运动的运动特征.
- 调查球员排名对运动概况和拍摄质量的影响.
主要方法:
- 利用来自澳大利亚公开赛 (2021-2023) 的眼数据.
- 应用k-means和随机森林模型来识别方向变化 (CoD) 的横向终端范围运动.
- 计算了峰值速度,减速,加速和射击质量,根据ATP排名比较球员.
主要成果:
- 前10名和前50名的球员比前50名以外的球员显示出更高的峰值速度,减速和加速.
- 与前50名玩家相比,前10名玩家表现出更高的峰值速度和加速度强度.
- 观察到峰值速度和拍摄质量之间存在非线性反向关系,尽管前10名玩家在更高的速度下保持了质量.
结论:
- 在具有挑战性的网球运动中量化动力学差异.
- 排名更高的球员在终端系列中表现出卓越的运动潜力.
- 运动效率和击球效率与球员排名在精英网球中密切相关.
相关概念视频
Motion of a Projectile
697
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.
697
Force and Momentum
15.3K
Force and momentum are intimately related. Force acting over time can change momentum, and Newton's second law of motion can be stated in its most broadly applicable form in terms of momentum. Momentum can be applied to systems where the mass is changing, such as rockets, as well as to systems of constant mass. Also, momentum continues to be a key concept in the study of atomic and subatomic particles in quantum mechanics. One can consider systems with varying mass in some detail; however,...
15.3K
Projectile Motion: Example
9.6K
The theory of projectile motion is very useful for players of several sports to improve their performance. For example, a javelin thrower needs to throw their javelin in such a way that it travels as far as possible. The javelin thrower takes a short run-up to increase the initial speed of the javelin. The range of a projectile is at its maximum at a 45° angle so javelin throwers try to angle their throw as close to 45° as possible.
When we speak of the range (R) of a projectile on...
When we speak of the range (R) of a projectile on...
9.6K
Impact: Problem Solving
221
In an experiment conducted during a Mars mission, a rover propels a projectile with an initial velocity, and the projectile rebounds after colliding with the Martian surface. To ascertain the maximum height attained by the projectile after this collision, the known restitution coefficient and acceleration due to gravity are employed.
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...
221
Projectile Motion
15.0K
An object thrown in the air follows a parabolic path under the influence of Earth's gravitational force. The motion of such an object is called projectile motion, and the object itself a projectile. The parabolic path followed by the projectile is called the trajectory. Some common examples of projectile motion are the launching of fireworks, a golf ball in the air, meteors entering the Earth's atmosphere, and the firing of bullets.
When an object falls under gravity and has no...
When an object falls under gravity and has no...
15.0K
Projectile Motion: Equations
10.0K
Projectile motion is commonly observed in our day-to-day life. For example, a basketball thrown by a player, an arrow shot from a bow, and kids jumping into the pool, all undergo projectile motion.
Any projectile motion problem can be solved by using the following strategy:
Any projectile motion problem can be solved by using the following strategy:
10.0K


