rdharbis1
Contributor
I am on MikeeH's side! Let me know if you find any of those discounts! I will stop rolling the AARP stuff into fireplace logs!
Randy
Randy
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Well, considering that (1) while diving your PO2 is always above .21 even on air, and (2) your breathing rate is almost entirely controlled by CO2 and not Oxygen, I doubt there's anything to it. I think that Nitrox divers do frequently see a decreased SCR, but I think it's attributable to the normal improvement with experience - and new Nitrox divers tend to be getting Nitrox certified during their peak "improving-SCR" experience level.diversolo:I hadn't seen this addressed in the thread...and this might be a question for a dive savvy physician, but would diving with nitrox perhaps decrease the SAC of an older individual? I'm 43 and it seems to with me. Hard to tell, but my AI dive computer seems to bear it out. The reason an older person would breathe more air is because their lungs aren't as efficient at utilizing the O2 at 21%, so they compensate by breathing more. Conversely, a higher PO2 should decrease their SAC. Any thoughts on this from someone qualified to comment?
scubajoh44:My "Daddy" is a LOOOONNNNNGGGG time diver. His is now 68 and in good health FOR 68. We went cavern diving this summer in Cancun. He had to have help getting his equipment down the steps (it was quite a way). Simply, he's just not in as good of shape as a 20, 30, 40, ect... Now that I noticed that, I see that he manages to "slyly" get someone to set his BC rig in the water or have someone get his tank somewhere. Always on the "sly". When should he quit diving? He really sucks down the air now too. I have almost 400 dives now and they are ALL with him. It's going to break my heart the first time I dive without him, but deffinately don't want him to dive if he can't handle it. I think I'll have to be the one that tells him it's time to stop. Don't EVER see him admitting it.
"I want in the water. Leave me alone." :help_2: