You love your dog and it nearly broke your heart when you discovered your dog had a heart attack. Fear of losing them may now have you protecting your dog closely, restricting their activities, and believing the best thing for your dog is constant rest. Just like humans, though, dogs do need to maintain a healthy lifestyle and that includes at least some daily exercise. It doesn't have to be strenuous but keeping your dog moving their muscles and joints will help avoid painful complications like arthritis. You also want to keep your dog mentally stimulated and enjoying life and for your dog, that involves spending time with you. Try some of these activities with your dog that has had a heart attack and see if they don't seem to be happier. Of course, at any time your dog seems to have had enough, is panting heavily, or coughing, it's time to take a break.
Just like people, dogs can recover from a heart attack. You may need to be extra attentive to their needs for a while and make sure you don't let them overdo. Most of all, though, they need your love more than ever. You may not be jogging together for awhile but there are still plenty of activities your dog can...and wants....to do.