I was reading the book "no shortcuts to the top" by Ed Veisturs. He was the first American man to climb the 14 tallest mountains on the planet, and on top of that he did it without supplemental oxygen. Scientists tested him and determined that his lung capacity was 7 liters, while the Average man was 5 liters. They also calculated his V02 max was in the 98 or 99th percentile. He had inborn genetic traits which helped him intake and carry oxygen. I guess you can train as hard as you like but you'll never be Henry Armstrong (Abnormally slow heartbeat) Not that training doesn't matter but it seems certain people can't reach a certain level.
Everything is genetic, however I would imagine nobody is at their maximum conditioning, same as speed. If you put in work to improve it, it will improve. And virus why even comment on some of these posts if you have nothing worthwhile to say?
It would be worth knowing, when He was tested. Before or after He had done the 14, my guess it was after.
What? If someone says yes, conditioning is down to genetics (obviously genetics play a huge role in conditioning) so what, we all know this. Why does it matter if it's 50%, 20%, 2% what difference does it make? It's something unique to everyone and you'll never have an exact number for yourself or anyone else you know. Makes the question somewhat pointless wouldn't you say?
Your absolute threshold may be determined by genetics but having the highest VO2max doesn't mean you're the fittest or going to win an endurance race. And for the levels of conditioning required for boxing nobody in the world has an excuse when it comes to genetics, the levels that may be considered necessary are achievable by anyone. As boxing is a skill sport success isn't determined by physiological factors much at all.