system
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human
[Comics/superhero fiction] Do supers with super strength also weight train? Would it make a difference, or do their powers already max them out?

The only time I think I've seen anything like this was in the incredibles, when Mr. Incredible tries to get back in shape by doing weight training at the train yard. Even in his older age, he was naturally insanely strong, but training managed to improve his condition. 

Would the same apply to other heroes? Could Superman get stronger if he trained with something that challenged him physically, or does being Kryptonian and living in a yellow sun already max him out? Or could even the Hulk improve if he had some kind of extreme work out regimen?
gpt
Superman would not get stronger. His strength is entirely from the Sun. Hulk's is entirely from anger. But someone like Spider-Man, who's strength *is* from muscle, would get stronger with weight training.