Originally posted by efattah:
I don't always like talking about the lung volume issue because it's not as important as it seems -- air is the worst kind of energy store because of the compressibility, narcosis, and pressure on the arteries during packing.
Eric posted this interesting comment in another thread. It begs the question "what is important to a good performance"? Lets focus primarily on constant ballast endurance at comfortable depths (which obviously vary with the individual) as opposed to extreme depths since this ought to help the broadest audience. There are a few things that I think I know about, obvious and otherwise (no particular order):
- Relaxed, calm activity (low heart rate)
- Being well hydrated
- Being properly "warmed up" (increasing the tolerance to CO2)
- Being warm (but not too warm?)
- Having awoken the infamous/renowned "mammalian diving reflex"
- Flexible diaphragm and chest cavity
- Effective equalization and minimal airspace in the head/mask
Please add to the list, expound upon it, discuss it, refute it, prioritize it, etc. Insert wisdom in space provided below...