I am not sure this is exactly what your talking about but apparently running say along a concrete path or even grass for long periods of time over years deforms your bones slowly and really ain't that good for you. If i ever do intense cardio i think a stationary bike is best

Please explain this. How does this happen to the bones? If this is the case, why isn't every recreational runner deformed and/or crippled after years of running? Also, if this is the case, does walking do the same thing?

Maybe he means that you want to switch sides of the road you run on because of the slope? Dunno.

I've enjoyed reading the debate in this thread. If anything, my assumption would have been the opposite of Sparrow's - I would have thought that barefoot running is most dangerous for people who have a poor stride/form. Rather than teaching proper technique, I would have thought that if you remove the corrective aspect of running shoes (e.g., motion control, stability) from people who need it most, they'd be more likely to suffer an injury.

no walking is fine but running is high impact and isent that good for your legs...good cardio but yeah been told by tons of people that lots of running ain't that good

Running may be bad for the joints at the knee and/or ankle, depending on individual presentation, running economy, etc, etc, absolutely...but it's not going to "deform your bones."

Just to make sure i think you should stick to power walking its a nice median lol me personally wouldn't be cought dead power walking along a pathway but hey if you cant afford a gym membership and don't want deformed legs then go for it

Thanks for all the input!

Here's what I've noticed, personally.... (And I have always had issues with all of my leg joints, even as a kid) When I run in shoes, I always twist my ankles... always. The rest of my legs are fine. Yet what I noticed with running barefoot, is that for once in my life, I could run without twisting my ankles... BUT it hurt my knees and shins bad!! All in all.... running with shoes cause me less damage. I think running shoes need to be more barefoot like. I would love to get me a pair like that.

The comment saying that what jiggles... DIES.. instead of tightens has gotten me a little freaked! I've also heard that running shrinks muscle, and makes you whispy? I want to make my rear BIGGER. Anyone care to shed some light?

Oh a side not... I'm using my 45 lb child as my weight! (Is that too heavy? It doesn't feel like it, and it doesn't hurt me) He loves it! Giggles the whole time. He says "Get up mom, let's exercise!" He's my personal trainer.