scholarly journals Biomechanical Analysis about the Anticipation of the Goalkeepers for the Ball Flight Trajectory in the Soccer Shooting Situation

Biomechanisms ◽  
2020 ◽  
Vol 25 (0) ◽  
pp. 21-32
Author(s):  
Naoki NUMAZU ◽  
Norihisa FUJII ◽  
Taisuke MORIMOTO ◽  
Sekiya KOIKE
Author(s):  
Cody Lindsay ◽  
Brad Clark ◽  
Kane Middleton ◽  
Rian Crowther ◽  
Wayne Spratford

Athletes alter ball flight trajectory in interceptive ball sports to change task constraints that their opponents must overcome to successfully meet the ball in flight. This systematic review identified how athletes change their techniques to alter the ball flight trajectory in high-performance interceptive sports where the ball is projected by the hand towards an opponent. Studies that reported the kinematics or ball flight characteristics of these movements were searched for using SportsDiscus, Scopus, MEDLINE and CINAHL Plus databases up to 27 April 2021. Forty-eight articles met the inclusion criteria, including 19 baseball, 12 cricket, five handball, four softball, three volleyball and five water polo studies. Extracted data were presented as ranges and descriptively analysed to report athlete sporting actions. Trajectory deviation can be caused by imparting an altered seam orientation or spin rate and axis of rotation on the ball. Athletes impart sidespin or manipulate seam orientation to cause lateral deviation while topspin and backspin are used to create vertical changes in the flight path. Adjusting the shoulder, forearm, wrist, hand and fingers of the throwing or striking arm can be used to impart an altered seam orientation or spin rate and axis of rotation on the ball. The findings of this review could assist coaches and athletes across a variety of sports to improve the ability to deviate the ball during flight.


Author(s):  
Ping Wang ◽  
Qian Zhang ◽  
Yinli Jin ◽  
Feng Ru

When a table tennis ball is hit by a racket, the ball spins and undergoes a complex trajectory in the air. In this article, a model of a spinning ball is proposed for simulating and predicting the ball flight trajectory including the topspin, backspin, rightward spin, leftward spin, and combined spin. The actual trajectory and rotational motion of a flying ball are captured by three high-speed cameras and then reconstructed using a modified vision tracking algorithm. For the purpose of model validation, the simulated trajectory is compared to the reconstructed trajectory, resulting in a deviation of only 2.42%. Such high modeling accuracy makes this proposed method an ideal tool for developing the virtual vision systems emulating the games that can be used to train table tennis players efficiently.


2018 ◽  
Vol 145 ◽  
pp. 01002 ◽  
Author(s):  
Juliana Javorova ◽  
Anastas Ivanov

In this paper the trajectories of a soccer ball for the most important kicks in the football game - a corner kick and a direct free kick are studied. The soccer ball is modelled as an ideal rigid hollow spherical body with six degrees of freedom, which performs a general motion in an immovable air environment with constant parameters. The ball 3D orientation is determined by the three Cardan angles. The aerodynamic forces and moments with which the air environment acts to the ball are taken into account. Two of the most dangerous areas of the football goal are defined. Differential equations which describe the motion of the soccer ball are solved numerically by MatLab-Simulink.


2012 ◽  
Vol 220 (1) ◽  
pp. 53-54 ◽  
Author(s):  
Elena Biryukova ◽  
Blandine Bril

2020 ◽  
Author(s):  
L Fleischhauer ◽  
D Muschter ◽  
S Grässel ◽  
A Aszodi ◽  
H Clausen-Schaumann

2012 ◽  
Vol 3 (5) ◽  
pp. 118-119 ◽  
Author(s):  
Dr.SUGUMAR.C Dr.SUGUMAR.C ◽  

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