In this study, by monitoring the physical condition of the Chinese national men's hockey players from the three major characteristics of metabolic energy systems, examining the present situation of physical ability of all of the players and difference of the anaerobic and aerobic capacity,the purpose of the study was to provide the first-hand information for the training. By re- monitoring the physical condition to find out the changes of the players'physical ability after the system training and to make the last prepare for the 2008 Olympic Games. By comparing the data of the anaerobic and the aerobic to YO-YO test , the purpose was to evaluate the YO-YO test from the aspect of physical condition.
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