Hockey rink is equipped with electronical record, and has monitored deviceswhich monitoring and recording game and the practice of medicine person's of playing chess rink. In one embodiment, to include optional more mechanized machinery people be similar to hockey player in human body format design to electronical record supervision equipment. In one embodiment, hang on can be by the various controllable skate-modes along overhead rail andpower electric cars for robot. Therobots is equipped with sensor, when by skater, the related data of providemeasurable, overhead track skater's performance. The pause of fromwhich robots is raised to position much higher than icesurface when robot is not used. The present invention is also about tutorialand interactive computer system native instructions. Image hockeyplayer by player's control/student side by side or overlap onto Uponor otherwise contraste to the image one sees in front of a mirror is a virtual image " ideal " or " master " hockeyplayer (multiple) on a computer display. Player/student manipulates " controlled " image hockey player, to make great efforts the mobile ideal player of simulation.
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