the bulgarian method is en vogue now, there was an article in the Wall Street Journal about it. There's something to it, but it ignores the massive amounts of roids the bulgarians used to help them deal with training every day. It's a useful kick in the pants to not coddle oneself, but this could probably only be implemented by elite or advanced athletes.
That said, I had planned on skipping squats today since my back is a little sore. Looks like I'm going to go for it after all!