It does shorten the angle , in low levels of football you get away with being forward of your ark however against quality I take a little extra reaction time any day any time for young goal keepers please don’t go racing out thinking he has no room to get it in, the ball will be in the net before you know it and you will be left looking over your shoulder at that ball. When play is at the edge of the 18 yard box be in the 6 yard box, confirm your goal centre and take a few steps of the goal line keeping the ball in the middle of your chest, picture a line going from the centre of the goal through your chest and inline with the ball at the attacker feet.
So nice to see a video demo of this! I take this a step further with my GKs and tie rope to the posts of a cage. Then they get to move around within the yellow angles you are showing here. I move around the circle with the rope, having them find their angle for each area, and dropping a cone where they are standing to defend each shot. After a full lap around the circle, they have traced out a set of angles for themselves. For my more advanced keepers I randomly place balls around the circle and have them drop cones where they think they should be for each shot. Then we use the rope to check. I also show these angles to all our field players. It helps defense understand where the keeper will be, what shots are dangerous, and why D pushes towards the outsides of the field and not up the middle. This also helps offensive players see where the best shots are and why. My keepers have even gotten so that they watch the opposing team's keepers and report any weakness in angles to my offense.
Simpatica e chiara dimostrazione grafica dei concetti di : piazzamento sulla bisettrice dell' angolo di tiro, di profondità e di chiusura dello specchio della porta.
