Sciencific ideas change and get stacked over one another, any reason for arguement here would be due to too many researchers and bodybuilders printing stuff. You guys are well learnt in tissue development, and I hope these are not quotes out of a bodybuilder magazine.
The onlything I could possibly bring to this is that intese physical and metal events in life can mentally toughen a person. If it can be replicated in a gym enviroment in a small way then there would have to be a plus to it from a mental approach, as to making a fighter superiorally resolved to smash someone into the mat.
"the onlything promised in life is death, everything else is achievement"