So happy it worked for you.
However, I do want add a caveat to this theory. If you are exhausting our dog on a daily basis in order to create a calm dog - it can work until he takes a nap. Then he wakes up and is his same old refreshed self, and he hasn't learned a thing. Plus, this week 5k will do the trick but next week you are going to need to do 6k to get the same results because you are now conditioning an athlete.
Physical workouts are valuable and good for everyone, but mental workouts are just as tiring and actually teach. So the dog behaves no matter how much exercise they have had.
Love Them & Lead Them,
~Elizabeth & Doug
Dog Training the Way Nature Intended