This article is pretty interesting. It talks about how to spring off the ball of the foot and not the heel. This style of running purports to eliminate injury.
http://www.nytimes.com/2011/11/06/ma...pagewanted=all
This link is to a video that demonstrates the running style:
The Lost Secret of Running - Video Library - The New York Times
I've been running a bit this year, it works my lungs better than anything else I do. I tried the method as shown in the video at the fitness center this morning. I don't think I'm a natural heel striker when I run. The only thing I really did differently was to bring my knees up higher. It will be interesting to see if I feel the burn tomorrow.
Has anyone here tried this method of running?