I read an interesting article in the NY Times Well Blog this morning asking the question '
Is There an Ideal Running Form?'
In recent years, an emphasis on barefoot or more realistically, minimalist shoe running has been taking hold in the running community. Much of this I think is due to the popularity of the book 'Born To Run' by Christopher McDougall. I won't spend all day discussing the merits for or against barefoot running, but I think there are merits to focusing on running economy and focusing on better running form.
I've seen plenty of heel strikes run fine with little or no injuries for years, and I've seen forefoot strikers with stress fractures. What does this mean? Near as I can tell, run comfortably!
I made some adjustments to my running form, primarily because I was looking at increasing my speed and endurance. So I adopted a fore/midfoot strike and I found that I was faster when I centered my body mass over my feet, and shortened up my stride.
I think the best practice is get out and run, stride and form will naturally follow.