Quote:
|
No, not if we agree that ventilating CO2 takes some additional effort and results in a lowering of carbonic acid in the blood.
|
Sub-neutral breathing does require additional effort and you have not checked whether you have lowered carbonic acid or not.
The effort, comes in the form of purposeful controlling of your breathing. When you rest naturally, your body tends to control your breathing based on the levels it expects. It does this with significant changes in breathing depth and frequency. Sometimes we hold our breath for periods without noticing. Sometimes we breath rapidly without noticing. All the while the depth of the breaths are modified. In 1 minute it could have done the whole works, all adjusting to some standard level of CO2. As soon as you add controlled breathing, even if it doesn't feel like effort, or much different than your resting state, you have inadvertently changed the levels of CO2.
But I guess the question that is really at the root here, is what degree is your breathe-up/lack thereof, actually modifying those levels. I think when you say that you feel like you could go on infinitely, that is merely saying that there is a plateau to the degree this breathe-up can reach, where the build-up of CO2 balances out with the rate at which your breathing can effectively remove further CO2 from the blood.
