Carting
I am just beginning to explore the dog sport of carting, where the dog
learns to pull a cart or wagon. This sport was recommended to me by Dr.
Chris Zink, to help strengthen my German Shepherd's back. Here are some
links I've found which may be helpful:
Freestyle
Rally obedience
Here are some links to information about Rally obedience, which allows
exhibitors to talk with their dogs during the competitions.