Exercising, staying in shape and training your dog all at the same time sounds almost too good to be true. But Sophia Yin, DVM, a dynamo veterinarian, behaviorist, author, and fitness devotee, has a workout series for you that includes training your dog at the same time. Her website  is a source of invaluable information including behavior, training tips and instructional videos.
As Sophia notes:
She consulted with Hideshi Okamoto, a coach to Olympic athletes, and of the Fitness Garage , to develop this easy-to-follow indoor exercise—you get your warm-ups in while teaching your dog solid down-stays.
As for the equipment, you will need a chair, an exercise ball and a 2-pound dumbbell, plus small easy-to-eat treats for your dog—kibble works well too.
Give a look at their routine: