Additionally - If you look at the stats for one of boxing biggest matches - Cotto Vs. Margarito - You'll find Margarito threw roughly about 90 punches per round. That anaerobic exertion to punch takes a fraction of a section, but giving you the benefit of the doubt, and saying that the anaerobic exertion last for an entire second - That's still only half of the round. The other half, a minute 30, is all aerobic. Thats 50% for the fighter at the top of the Welterweight division, Cotto threw roughly 60 punches per round. Don't expect anyone heavier than him to come even close to that many punches thrown per round, as Marg did.