Yoga for Skiiers

I want to go skiing. However, I also want to do Yoga when I'm not skiing to make my skiing better. Tonight, I found a cool link about what Yoga poses are good for skiing. Here it is: http://matadornetwork.com/sports/6-yoga-poses-for-skiers/ . The other day, during class, we did the chair pose. I could feel my quads, already fairly strong from skiing engage. They seemed happy to be used again.  I'd like to see us do a few of these poses listed in the link, particuarly the Ustrasana, or Camel pose and the Marichyasana pose. 

-Ted