it all depends on your genetics.
doc explained it to me when i was getting my heart checked out in Jan....
I told him I was getting checked because I have been getting PVC's since I was 16, and since I lift heavy and some "other things" I was wanting to get checked cause I worry about heart enlargement and such.
he said:
"thats a big myth, its not going to happen to everyone... even exercise induced LVH in general depends on the person. Genetically, if you have a predisposition to heart disease/heart failure then yes... it might happen faster if you give it a little help. But if you dont, you dont... by the way... you dont... your heart looks amazing."