I crack up inside my head when I see an out of shape, I mean, noticeably out of shape man or woman stand and throw a ball with a ball stick (god forbid if they actually have to touch all the way down to pick it up)
for their dog to chase and chase and chase, how many times? Till they're barely able to breathe, till they can hardly wait to get water, until they can barely get back into the car that the owner drove down to the park so the dog could "get some exercise". How about the person? How about the dog making the person sprint as hard as they can back and forth for 30 minutes until they can hardly breathe? Why do humans care so much about their dog's health when they have waist measurements way over the healthy range? Why are humans not walking at least 10,000 steps per day?
This sums up a part of the human mind that I find in personal training business and bootcamps..Resistance to being pushed, resistance to being challenged, wanting the results but frowning upon the exercise before them. So yes, exercise your dog but only if you're also exercising yourself. Besides, if you have a stroke or heart attack due to your lack of physical activity, what happens to your dog?