Knowing when to stop
Dogs are less tolerant of heat than humans, and their main mode of cooling off is by panting. If your dog looks alert and is panting quietly with his mouth open but his tongue is just peeking out of his mouth, then he’s probably okay in terms of heat. If his tongue is hanging out of his mouth, his mouth is open wide and the commissures are pulled back, then it’s time to slow down, or stop for a rest. If his breathing doesn’t go back to normal within a few minutes, end the run. If you’re running at a decent clip, you’ll have other signs that he’s tired: he’ll slow down and start hanging behind you instead of trying to be slightly ahead or right next to you. And if he has to lie down to rest when you stop, then you’ve pushed him too far. Finally, avoid coaxing him to go faster than he wants; endorphins can mask dogs’ pain just as they can our own.
So, that’s the recipe for creating a great canine running partner: Start with training, maintain good manners, follow the rules of the road, stay alert to your dog’s condition and, when in doubt, take a break. Now, get out there and run!