Does nitrox make you feel good?
- Thread starter fisherdvm
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This web page also implies that Nitrox reduces NarcosisCharlie59:
You have an interesting view of science. Why couldn't a study be designed to ask people how they felt after (and before if you like) a dive and compare it to their "usual" dive. Place these people on varied fiO2 and compare if more O2 equals feeling better or less tired.
The only thing impossible about the study would be finding someone to fund it.
Instead there are dive shops selling it on anecdote. Thus the post of the dive shop promoting magic gas nitrox.
The only thing impossible about the study would be finding someone to fund it.
Instead there are dive shops selling it on anecdote. Thus the post of the dive shop promoting magic gas nitrox.
or people purporting the other side as well.Charlie59:
A scientific study would - come up with factual data. There would be control subjects. To truly analyze the situation you would in reality need to exactly duplicate the circumstances. That would mean that the subjects would have to dive on Air and on Nitrox, in the exact same physical and mental condition on each dive to truly prove or disprove the argument. Is this not valid?
Let me ask you this.
How can you say that nitrox DOESN'T make you feel better?
Anecdotal or not, if people FEEL better, then they do.
djanni
Contributor
I feel better using Nitrox. Less tired too.
Don't over analyze it! You'll spoil it for yourself.
If more of you would use it regularly maybe the price would go down.
Don't over analyze it! You'll spoil it for yourself.
If more of you would use it regularly maybe the price would go down.
This is the synopsis of the Undersea Medicine article, it looks like a dang good study to me (the summary is from pubmed).
Hyperbaric Medicine Unit, Royal Adelaide Hospital, Adelaide, South Australia 5000.
Many divers report less fatigue following diving breathing oxygen rich N2-O2 mixtures compared with breathing air. In this double blinded, randomized controlled study 11 divers breathed either air or Enriched Air Nitrox 36% (oxygen 36%, nitrogen 64%) during an 18 msw (281 kPa(a)) dry chamber dive for a bottom time of 40 minutes. Two periods of exercise were performed during the dive. Divers were assessed before and after each dive using the Multidimensional Fatigue Inventory-20, a visual analogue scale, Digit Span Tests, Stroop Tests, and Divers Health Survey (DHS). Diving to 18m produced no measurable difference in fatigue, attention levels, ability to concentrate or DHS scores, following dives using either breathing gas.
Hyperbaric Medicine Unit, Royal Adelaide Hospital, Adelaide, South Australia 5000.
Many divers report less fatigue following diving breathing oxygen rich N2-O2 mixtures compared with breathing air. In this double blinded, randomized controlled study 11 divers breathed either air or Enriched Air Nitrox 36% (oxygen 36%, nitrogen 64%) during an 18 msw (281 kPa(a)) dry chamber dive for a bottom time of 40 minutes. Two periods of exercise were performed during the dive. Divers were assessed before and after each dive using the Multidimensional Fatigue Inventory-20, a visual analogue scale, Digit Span Tests, Stroop Tests, and Divers Health Survey (DHS). Diving to 18m produced no measurable difference in fatigue, attention levels, ability to concentrate or DHS scores, following dives using either breathing gas.
johnny_bravo:
That can just as well prove the placebo effect or not prove it. As for your headaches, are you sure the air wasn't bad.
I feel invigorated after every dive no matter what gas I breathe.
fisherdvm:
Are you just playing ignorant? Quantify how good you feel in a measurable fashion that can be repeated by other people and they will come to the same results for the same activities and it is all repeatable.
A placebo can make you feel better, but that doesn't mean that something that makes you feel better is a placebo (faulty logic on your part).
There is not even a scale that you could come up with that will work on the same person time after time because an individuals perception will change depending on countless biological and mental pyschological factors.
My vote is I feel no different, on any type of repeating basis.
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