在休高尔夫球运动员中,随着放距离和斜坡倾斜的变化而发生的动力学变化
Shawn M Robbins1,2, Philippe Renaud3, Ukadike Chris Ugbolue4,5
1School of Physical and Occupational Therapy, McGill University, Montreal, QC H3G 1Y5, Canada.
Bioengineering (Basel, Switzerland)
|January 24, 2025
概括
高尔夫球运动员通过增加干旋转来调整他们的投篮技巧,以便进行更长的和上坡的投篮. 这提高了头的振幅和速度,这对于调整运动模式以适应不断变化的任务需求至关重要.
科学领域:
- 生物力学 生物力学
- 发动机控制器的控制器
- 高尔夫表现高尔夫的表现
背景情况:
- 高尔夫球需要适应性的运动模式,以满足不同的任务需求.
- 了解关节动力学和推杆运动是优化推杆性能的关键.
研究的目的:
- 为了比较不同投篮距离和斜率的休高尔夫球手的关节角度和投篮动力学.
- 为了确定高尔夫球手在面对改变的投篮条件时使用的动力学策略.
主要方法:
- 利用Vicon运动捕捉系统收集了14名休高尔夫球运动员的动态数据.
- 在平面和倾斜表面上进行3英尺和7英尺的推杆时评估了关节角度,推杆角度和时空变量.
- 采用差异分析和统计参数映射来进行数据分析.
主要成果:
- 较长和倾斜的推杆导致更快的推杆头和球速度.
- 在较长时间的推杆中观察到反转幅度和持续时间的增加.
- 较大的干轴旋转在较长的推杆 (所有阶段) 和倾斜的推杆 (通过后续) 中是明显的.
结论:
- 干是增加推杆头振幅和速度在更长的推杆中的主要驱动因素.
- 类似的干部旋转策略可能有利于上坡推杆.
- 建议进行进一步的研究,以验证这些发现在熟练的高尔夫球手身上.
相关概念视频
Motion of a Projectile
695
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.
695
Relative Motion Analysis - Acceleration
328
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
328
Equation of Motion: General Plane motion - Problem Solving
170
Consider a lawn roller with a mass of 100 kg, a radius of 0.2 meters, and a radius of gyration of 0.15 meters. A force of 200 N is applied to this roller, angled at 60 degrees from the horizontal plane. What will be the angular acceleration of the lawn roller?
The friction between the roller and the ground is characterized by two coefficients. The static friction coefficient is 0.15, while the kinetic friction coefficient is 0.1. These values are crucial in understanding the interaction between...
The friction between the roller and the ground is characterized by two coefficients. The static friction coefficient is 0.15, while the kinetic friction coefficient is 0.1. These values are crucial in understanding the interaction between...
170
Upward Impending Motion
270
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. Its operation is based on converting the force applied at its handle into a torsional moment, causing the upward impending motion of the screw. This movement is accomplished by overcoming the static friction between the threads of the screw and the jack.
To better comprehend how a screw jack functions, consider the completely unraveled thread as a block in contact with the...
To better comprehend how a screw jack functions, consider the completely unraveled thread as a block in contact with the...
270
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
Elevation of Intermediate Points on Vertical Curves
21
Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...
21


