Originally Posted by
kr32
explain to me why a street is better for a jogger than a sidewalk. Both are hard and you can't tell me the knees know the difference.Asphalt and concrete are both hard as rocks when you fall.
Has zero to do with falling. Running on concrete will do a ton of damage to your knees. Asphalt not nearly so much. Yes, your knees (and your orthopedist) know the difference.