No, he worked in real estate finance. All the construction was managed and handled by contractors who, by the way, didn't always get paid for their work. The man never lifted so much as a hammer. The only time he wore a hard hat was when he was being given a tour. Nothing physical about it whatsoever.
And more than anything else, Joe Biden just eats better, so my money is on him. He looks after his body because he doesn't believe that the human body is a f**king battery. Trump has said this!