Several years ago I took part in a "refresher" hockey course taught at our local rink for older players who had been away from the game (like me) and for new guys just learning who wanted to join a rec league. I was reminded, as never before, what an aerobic exercise hockey is, and took frequent rest and water breaks. Not sure I want to go thru that again, now older and even more out of shape. But maybe its a good excuse to start jogging again...