Looking at these things:
-Dean Karzanes can run up to 350 miles without break. It is either because his body flushes lactic acid more rapidly or because his body doesn't produce it in the first place. (Lactic acid buildup causes muscle fatigue and soreness)
-Lactic acid forms when the body breaks down carbohydrates to use for energy when oxygen levels are low.
-I have seen multiple instances of people (specifically Wim Hof Method practitioners) saying that they can do more pushups than usual, even if they don't breathe during the pushups, by hyperventilating beforehand to increase the oxygen levels in the body. (example)
-For decades professional athletes have been traveling to exercise high in the mountains, where there is less oxygen, because it teaches their bodies to use oxygen more efficiently and therefore improve their endurance.
Combining all those different things above, I have a question:
If someone went on a slow jog and they were intentionally breathing way faster than they feel necessary - shouldn't they be able to break their personal records of how far they can run?