There is no way to answer this. It is a combination of age, luck, genes, etc. Young people may be quite mobile at 650 pounds. Someone could injure themselves, and have no problems if they are 120 pounds, but unable to walk if they are 250. It also depends on where the weight is. Someone may be unable to walk because their legs are big and rub together. But if the weight is elsewhere, can walk just fine.
9 years
