Quote: (Originally Posted by
Edvin M)
Regarding your blood O2 level, I did some reading about freediving medice where people where using O2 meters to check blood O2 level and they were in the area of <95% so apparently you will continue to have a high level of O2 in your blood which brings my metabolic down to 0.2 l/minute.
There seem to be two schools of thought in freediving medicine circles that a samba is either caused by oxygen lack or CO2 build-up. As a rebreather diver, and hence properly neurotic about CO2, I tend to favour the latter but I'm a physicist not a biologist. The test for me has always been the fact that I have run my blood hemoglobin down to blue and not blacked out but never seen blue lips on a sambaing freediver. I just can't see how they are low on oxygen at that point. The fact that all you have to do is grab them and they come round also perplexes me. It should be getting worse with the delay which ever it is but it gets better.
Your point on CO2 tolerance. Yes it is a key trick freediving but it is the thing that will kill us as in the limit we samba and need support.
Quote: (Originally Posted by
jepuskar)
Please go away. We're trying to have an adult conversation here.