Hockey physics

[Freudian]

http://www.adn.com/life/story/4668251p-4622431c.html

"When two NHL hockey players collide, their pads and body tissues can absorb enough energy to power a 100-watt light bulb for a minute and a half. During the 60 minutes of a hockey game, players can burn 6,000 calories and lose up to 15 pounds."

Interesting geeky stuff.

[Chancellor Vitale]

Most of that weight is simply water loss, and probably can be found in other sports with a high amount of cardiovascular exertion (basketball and soccer come to mind).

[JDB3939]

I know whenever I play goalie in my roller or ice leagues that I lose an average of 6-8 pounds of sweat per game. Drink a lot of fluids before and after every game. So those numbers you gave don't really surprise me at all.