well it makes you think...

[glaconman]

I think alot of it is to do with how our feet are designed to work. I don't have the theory to-hand so I'll spare you a bad attempt at the medical theory.

But think about track running. Spikes have no cushioning; that's provided by the tartan track. Allowing the athlete's feet to work as they were designed to.

I think the answer to changing your running style is to step right down in the distances. The 5ks I've been doing have rolled-back the years for me. And I'm sure my style has changed as I've had to run faster.