Part of the problem artists have, I've noticed, is that we tend to not realize how much the body can twist and turn, especially when we use our own as the judge. Some of us are far stiffer than others of course.
http://theskatinggallery.com/php/displa ... code=PH-60
So share some photos, old or new, male or female, let's just look at the human body for a moment. Doesn't need to be something you want to draw, just something that shows how dynamic the human body can be, especially in motion.