When your on the ice rink do some skating routines to get the whole body ready to play hockey. Do a few skating drills like speeding up and slowing down between the blue lines. Do this both frontward and backwards this waorks the large muscle groups. It is important to get your body for the stress of ice hockey with good skating drills. You should do the same drills then you are contributing to muscle memory which is valuable for your hockey skills. By doing these pregame drills on and off the ice your are getting properly prepared to play ice hockey.