Abstract
The aim of this study is to reveal variation of level of explosive power of extraliga ice hockey players of HC Rytíři Kladno A team within one year. Due to long season and many matches the power training of players is minimal.
That is why it cannot be established in which part of the year the explosive power reaches peak and how long it stays at or around peak value. Players were subjected to standard motoric tests: parallel long jump and 5 parallel jumps.
Testing was done in three periods: 1. At the end of ice off (two months since the training started) 2.
One week before the league beginning. 3. Mid season Results of both tests demonstrate that the level of explosive power of lower extremities changes during the year.
The highest values were detected at second measurement (One week before the league beginning). With the help of parallel long jump test the statistically significant difference in the level power was found during the year.
This phenomenon was only partially confirmed at 5 parallel jumps where changes are not statistically significant. From the coaching point of view it can be stated that the explosive power built up in sufficient quality before the season can stay at relatively high level during nearly all season if the keep up power muscle strengthening are part of training.