Let him build up strength over a couple of weeks before allowing him the opportunity for uncontrolled exercise. Good luck with this. Samoyed who has just been diagnosed with prostatic adenocarcinoma. I am told that this cancer is generally very resistant to treatment, that it moves very quickly and that most dogs are dead within three months of diagnosis. He is having difficulty urinating and defecating, so we do not have the luxury of time.
Typical treatment is radiation and surgery.
A complication is that his kidneys are not in good shape. The vet who did the ultrasound said that they look like the kidneys of a 10-11 year old dog. Last November, his BUN was at an all time low of 27. Last month when he was in for his annual checkup, it was 17. Today, it is 12.