WesTexDiver
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I think it's more simple than all of this. Breathing a higher concentration of oxygen can make you feel better even if you don't go diving. Why over simplify things.
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WesTexDiver:I think it's more simple than all of this. Breathing a higher concentration of oxygen can make you feel better even if you don't go diving. Why over simplify things.
Kendall Raine:There was also an article, I think it was in Immersed, discussing the prospect that the cumulative impact of multi-day diving might have the effect of reducing complement system response on successive dives. The article suggested that the immune response just ran out of gas (my term).
Gene_Hobbs:There have been several studies that showed complement is not the best marker. In fact, I don't know anyone who was able to repeat the studies that did show complement activation with similar outcomes. The fact that they have not been repeatable brings major questions to the validity of those trials in my mind.
Gene_Hobbs:Do you know where you saw these first?
You have it right. I misread your comments.Kendall Raine:Charlie has kindly agreed to send me a copy of the article. He thinks I got it backwards, anyway.
fisherdvm:Interesting, do you remember the citation here??
miketsp:http://www.usfa.dhs.gov/downloads/pdf/tr_98bw.pdf
THE EFFECTS OF OXYGEN-ENRICHED AIR ON FIREFIGHTER JOB PERFORMANCE
fisherdvm:Interesting study. This study would suggest that higher concentration of oxygen AT NORMAL ATMOSPHERIC pressure reduce fatigue when maximal aerobic exercise is encountered.
This would mean that even without risk of DCS or subclinical DCS, human experiences less fatigue when forced to perform strenous activity.
Since it was double blinded using 17 participants, this study would contradict the only study disputing the beneficial effect of nitrox on divers having only 11 participants who were not pushed to the limit.
amascuba:Not necessarily. Scuba diving and firefighting are two totally different activities with different effects on the body. I don't think that you can compare the two activities, while breathing nitrox.