Predicting the distance of the soccer throw-in by means of some kinematic variables

H. Uday

Abstract: Throw-in skill plays an important role to identify the outcome of soccer game if it`s invested in the best way. The purpose of the study is to analyse this skill and to find the most important kinematic variables that contribute to achieving a greater throw distance to reach the level of ideal technical performance.
The participants are 12 players from the team Al-Kitab University soccer. There were three attempts for throw-in at the position of movement with the making one leg in front of other for each player, the best attempt was analysed.
It was noticed the variable velocity of the ball's flight is the most contribution kinematic variable of throwing distance 96.7%. This contribution is greater 98.1% when this variable is matched with the variable of flying ball angle.
Two regression prediction equations has been concluded for the distance of the ball throw with the skill of the soccer throw-in. It is precisely reached the first flight velocity of the ball is: Throwing distance = -10.881 + 1.775 (ball flight speed), and the second in terms of speed and angle of ball flight: Throwing distance = -7.720 + 1.395 (ball flight speed) + 0.149 (ball flight angle).

Series on Biomechanics, Vol.33, No. 4(2019), 34 - 39

Keywords: Biomechanics; football; throwing

Date published: 2019-12-21