Just for the example, if we go up the escalator that is coming down that would be the same as the dog moving the belt in the opposite direction. Instead of a person pressing down and propelling his weight upward and outward to the next step the step moves away from the foot. On the ground a dog, or on actual steps, a person must generate the power to propel himself/herself forward.


An avid runner will tell you there is tons of difference between running on a tread mill and running down a road. Same with the dogs. EWO