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|Title:||Adding mass to the shoe does not affect ball velocity in a soccer penalty kick|
|Citation:||Proceedings of the 33rd International Conference on Biomechanics in Sports, Poitiers, France, (29 June – 3 July) , (2015)|
|Abstract:||The aim of this study was to identify the optimum shoe mass that maximizes ball velocity in a soccer instep penalty kick. Two players performed 20–30 maximum-effort penalty kicks while wearing football shoes with lead weights attached to the base of the shoe (total mass: 0.26 – 0.81 kg). The kicks were recorded by a video camera at 100 Hz and a biomechanical analysis was conducted to obtain measures of ball projection velocity and kinematics of the kicking leg. We found that ball velocity was insensitive to shoe mass (at least for the range of shoe mass tested). An important contributing factor to the observed relationship was that the velocity of the kicking foot at ball impact decreased as the mass of the shoe increased. Our result indicates that players should not change their shoes before taking a penalty kick.|
|Appears in Collections:||Dept of Life Sciences Research Papers|
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