Nope, can't do it, Bert. The best I give them is (and this includes those stupid forms that have to be completed before someone can take an exercise class at a gym or the Y) is, "based on the information provided by the patient, the information in my chart and my most recent physical exam of (date), I see no obvious contraindications to the proposed surgery (exercise)." My arse is just as important as the surgeons' and the Y's.