Geezer Gas

[victorzamora]

It has to, especially on dives pushing NDLs. EAN40 has a 32% lower pPN2 at 20ft. EAN 32 has a 16% lower pPN2. EAN36 has a 23% lower pPN2.

 

[Water Boy76]

Headaches after diving are caused by skip breathing or taking short breaths underwater. Try breathing slowly and slow your ascent and the headaches will disappear, even on air.

Yes you are correct. But mine are caused by strenuous activity. I'm not a lookey loo diver. When I'm working hard Nitrox helps to relieve headaches.

 

[Nemrod]

How does nitrox prevent headaches? N

 

[Octopusprime]

I think many people are misunderstanding the fatigue... The short story is nitrox has more O2 think about the football player that comes off the field and takes a hit of O2. There are trying to speed the recovery of the aerobic activity. The absorption of O2 into the blood will slow breathing and slow anaerobic lactic acid build up (burn).

Very few few divers swim for the workout but nitrox if added O2 slows resporation it will allow your tank to last longer.

 

[hroark2112]

Respiration is not based on O2.

Respiration is triggered by CO2.

Unless you intentionally breathe slower, the tank will last exactly the same amount of time as if it was filled with air.

 

[Octopusprime]

Respiration is not based on O2.

Respiration is triggered by CO2.

Unless you intentionally breathe slower, the tank will last exactly the same amount of time as if it was filled with air.

well duhhhh... Simple math By volume, dry air contains 78.09% nitrogen, 20.95% oxygen,[1] 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases. You make nitrox by adding O2 which will displace nitrogen, co2 and other gasses thus more O2 means less co2.

not to mention a persons ability to absorb o2. Respiration is caused by co2 in the blood by increasing o2 inhaled you can absorb more o2 and exhale more co2

 

[hroark2112]

well duhhhh... Simple math By volume, dry air contains 78.09% nitrogen, 20.95% oxygen,[1] 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases. You make nitrox by adding O2 which will displace nitrogen, co2 and other gasses thus more O2 means less co2.

not to mention a persons ability to absorb o2. Respiration is caused by co2 in the blood by increasing o2 inhaled you can absorb more o2 and exhale more co2

You need to read more about the subject. It's not the CO2 in your breathing air that makes you take a breath. It's the CO2 in your blood.

CO2 is a by-product of your body using oxygen. The amount of oxygen your body burns is relatively constant given a constant workload, regardless of inspired oxygen level (unless the inspired oxygen level is hypoxic, but that's a different topic). Even if you're breathing 100% O2, your body will still produce the same amount of CO2 based on how hard you're working.

Your theory is off. Sorry.

 

[Octopusprime]

Yes the body produces co2 but you need a good anatomy course. Within each air sac, the oxygen concentration is high, so oxygen passes or diffuses across the alveolar membrane into the pulmonary capillary. At the beginning of the pulmonary capillary, the hemoglobin in the red blood cells has carbon dioxide bound to it and very little oxygen . The oxygen binds to hemoglobin and the carbon dioxide is released. Carbon dioxide is also released from sodium bicarbonate dissolved in the blood of the pulmonary capillary. The concentration of carbon dioxide is high in the pulmonary capillary, so carbon dioxide leaves the blood and passes across the alveolar membrane into the air sac. This exchange of gases occurs rapidly. The carbon dioxide then leaves the alveolus when you exhale and the oxygen-enriched blood returns to the heart. Thus, the purpose of breathing is to keep the oxygen concentration high and the carbon dioxide concentration low in the alveoli so this gas exchange can occur!

IF o2 levels made no impact it would not matter if your breath was shallow or deep but buy taking long slow breaths increase the amount of time the air has to exchange and by exhaling fully will provide a better air exchange and the higher the co2 in the air you breath the less co2 you can release from hemoglobin.

 

[MaxBottomtime]

I think many people are misunderstanding the fatigue... The short story is nitrox has more O2 think about the football player that comes off the field and takes a hit of O2. There are trying to speed the recovery of the aerobic activity. The absorption of O2 into the blood will slow breathing and slow anaerobic lactic acid build up (burn).

Very few few divers swim for the workout but nitrox if added O2 slows resporation it will allow your tank to last longer.

You often see a football player on the sidelines breathing oxygen after running a long distance or having worked hard during a long series of plays.

Have you ever wondered if it works? Does breathing a high concentration of oxygen help an athlete recover from exertion faster?


The answer is a resounding “No,” and here’s why.


In healthy people, such as college and professional football players, nearly all of the oxygen in the blood is carried by hemoglobin. Only a very small percentage is dissolved in blood. Saturation defines the oxygen that is attached to hemoglobin and partial pressure of oxygen is that which is dissolved in blood.


Definitions: SaO2 = arterial oxygen saturation, Hb = hemoglobin, 1.34 mL is the amount of oxygen a fully saturated gram of hemoglobin can carry, Pa02 = partial pressure of oxygen or the amount of oxygen dissolved in blood


If an athlete has a normal Hb level of 15 gm, a SaO2 of 100% and a PaO2 of 100 mmHg, the formula used to calculate his blood oxygen content is


[Hb X 1.34 X (SaO2/100)] + 0.003 X PaO2 or
[15 X 1.34 X 100/100] + 0.003 X 100
20.1 + 0.3 = 20.4 mL/100 mL of blood


So, only about 1.5% of the oxygen content of blood is dissolved.


If an athlete raises his PaO2 to 400 mmHg by breathing pure oxygen the calculation is


[Hb X 1.34 X (SaO2/100)] + 0.003 X PaO2 or
[15 X 1.34 X 100/100] + 0.003 X 400
20.1 + 1.2 = 21.3 mL/100 mL of blood


Even at a PaO2 of 400 mmHg, only 5.6% of the oxygen content of blood is dissolved. Note that hemoglobin cannot be more than 100% saturated with oxygen.


Very soon after the athlete stops breathing the pure oxygen, its minimal effect disappears. It’s simply not enough to affect recovery or performance.

Skeptical Scalpel: Why supplemental oxygen is not considered a performance-enhancing drug

 

[Octopusprime]

Copy/paste from a no name blogspot.com is not a reliable source. Performance enhancing is vague and applied randomly at best. Caffeine is preformance enhancing but not a performance enhancing drug... Have you ever taken o2 after exertion? Have you played competitive sports? I have and it works. Your post says after you stop taking it the effect disappears... That is true. Let's you ran your fastest 100m sprint. Then you take o2 your respiration slow down and you stop o2 your not going to start breathing heavy again. You have already increased the o2 levels in the muscles and displaced the co2 out of the muscle produced by burning sugars and protein.

My mom recently was on o2 for an extended time. If she took off the o2 for a couple minutes there o2 levels in the blood would drop and she would become weak. If higher o2 levels in the air had no effect you would not see a correlation between o2 in the air and o2 in the blood