My feeling is that as long as you are careful, the puppy is the best one to tell you what is too much exercise. Most puppies will tell you when they have hit their limit, and it is important to resist pushing them beyond that point. Exercise may include long walks or running in fenced locations but I don’t recommend anything that may stress growth plates of a young puppy. Always best to check with your vet if you have questions.
Be aware of your puppy’s limits. Until you understand your puppy’s stamina, be sure that you are able to stop when your puppy needs a break. If you feel your puppy tires to quickly, talk with your vet about your concerns to see if there are any health issues. Even if your puppy wants to keep exercising and running, there are some things you should be cautious about. Be sure that your puppy does not overheat. Here in Houston, Texas, the humidity can quickly take its toll and a pup can easily become overheat. Always provide water for your puppy, put him in a cool pool or spray it down with a hose if you feel he is getting hot.
Make sure you exercise your puppy everyday both mentally and physically. Obedience or everyday life commands such as sit, down or come are all great “life” commands that every dog should know. Tricks are also a great options and good for you to show off to your family, friends and neighbors.
Most importantly Remember: A good puppy is a tired puppy!