I think OP was talking about a dog being walked at a human's pace. That is not exercise for a dog. It is movement, but does nothing much to contribute to a dog's overall physical health. Unless you are a jogger or runner, a human is not going to keep up at a dog's walking pace for anything more than a few minutes and that is the kind of walking that is beneficial to a dog's physical well being.Walking is great for both puppers and people alike! Our dogs both have access to a fenced in back yard on good days but we also live in the country and often are allowed to free "roam" providing we are outside with them as well. Though we do walks often in spring, summer and fall, it's a bit more challenging in winter with ice covered roads and snow.