>I have a close friend who is a personal trainer and holds a degree in Kinesiology/Physical Fitness and is convinced that a beginner should start out on a treadmill in the following manner:
>
>2 min at 2 mph
>4 min at 4 mph
>
>for 20 minutes and then build up to 6mph for the 4min interval and extend the workout to 45 minutes.

I have no interest in that or any other plan that involves running. I'm happy to walk at high speed, but I'd like to have these knees for another 40-50 years, so have no intention of running on them.

Tamar