One area where doctors seem to vary pretty significantly is in the area of restrictions on physical activity. I suspect it varies depending upon your age, size and physical condition and the sophistication of your doctor. I've heard the 30 pound limit pretty frequently. But, I've also heard other well-respected doctors go as high as half your body limit for relatively young and physically active patients (e.g., Dr. Roselli at the Cleveland Clinic, and my own doctor, who trained at the Cleveland Clinic but is now elsewhere). I'm relatively young (57), physically tall (6'3") and was physically active before my diagnosis, so that may have played a factor. Dr. Prakash seems to be pretty well known and knowledgeable in this area. You might check out his presentation that he did to the Aortic Hope group fairly recently:
https://www.aortichope.org/post/live-q-a-dr-prakash-aneurysms-and-blood-pressure