Impact of competitive learning method on the accuracy of direct free kicks in football among male university students by Waleed Sameer Hadi AlAridhee, Wathik Mohammed Abdallah, Thamer Hussein Kahat

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Mathematical Method to Construct the Linear Programming of Football Training by Liu Gang

“…The article calculates the parameters of the ball’s trajectory and quantifies the power of direct free kick shots. The article combines Kalman filter prediction and linear interpolation to supplement the position of the missed ball in the video. …”
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Is there any relationship between match running, technical-tactical performance, and team success in professional soccer? A longitudinal study in the first and second divisions of... by José M. Oliva-Lozano, Helena Martínez-Puertas, Víctor Fortes, Roberto López- Del Campo, Ricardo Resta, José M. Muyor

“…The main findings of this study were that factor 3, which was correlated with goals scored, possessions ending with a goal, shots on target, goals from set plays, goals from a direct free kick, offsides, and goals conceded, was the most important contributor to teams’ success (β = 0.66). …”
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Football Offense Training Strategy Based on Fractional Differential Mathematical Modeling by Liu ShaoYong, Chu YiJian

“…At the same time, this paper quantifies the shooting power of direct free kicks. In this paper, the resistance effect of air on the motion of the center of mass is considered. …”
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