Duncan's first underwater treadmill session

One of Duncan's therapy exercises is using the underwater treadmill.  Since he is just starting out, he walks at 0.5 mph for 3 minutes, rests for 2 minutes.  He does 3 repetitions of this.  He currently goes twice a week, but as he gets stronger (and gets the hang of it) he will walk for longer and go less frequently.

Newfoundlands are bred to be water rescue dogs, and he tries to swim; he doesn't enjoy the walking part.  Someone has to be in the tank with him to keep him focused.  He has already figured out how to cheat: he puts his back legs (the weak ones) on the sides of the treadmill and "skateboards" with his front legs.  When it was my turn to get in the tank with him, I had to put my knees around his hips so he wasn't able to move his legs to the side.  He was not amused.