[ams6110]

Running with a minimalist shoe helps protect your knees. You learn to strike with your middle foot rather than flat-footed or heel first. The shock is absorbed by the muscles and tendons in your calf rather than by your knees.

[Fricken]

Going back to when I was a teen I've never been able to keep up a running habit on pavement for more than a week before my knees hurt too much to keep going, but I've never had a problem running on trails and broken ground.

I did parkour for years, and at my peak I could jump from 12 feet up to pavement, everyone told me I was going to wreck my knees, it never happened. at 42 my knees are great but for the fact that I can't run regularly on pavement, and never could.

[alistairSH]

Yes, but... Please don't jump into minimal shoes and expect to do your normal mileage. Or, use them as your first running shoe, if you aren't a runner. Transitioning to them too quickly can lead to different overuse injuries (due to your body being used to heel-striking, and now you'er doing it without cushion). Start with a short run, on the track if you can, with PERFECT form.

As a semi-serious runner (sub-20 5k at 42 years old, ~20 miles/week), I've found it best to rotate shoes, not just to minimize wear on a given pair (cushioning can take a day to fully rebound from a long run), but also "horses for courses". Cushioned trainers for long runs. Light-weight racers for speed work and races. Trail shoes for off-road. Etc.