Jumping, weight training. All bad for young dogs. We know this. Its a given.
My dogs however had not read this particular piece of health advice, and would climb trees and walls, and jump off over things.
Play tug of war with entire doors someone had left in the sea, or a tracktor tire that is massive, gets moved around our garden frequently.
Sometimes, you have to hold em back. Or they'll be up to allsorts that are not good for them, a bit like us humans really eh?