air vs nitrox

[landlocked]

Doing basically the same dives, I notice a difference. With air I feel groggy. Nitox seems to avoid that. It probably has something to do with age and lack of physical conditioning. In fact, I sometimes grab a tank and breath it while sleeping.

 

[rockjock3]

NO - P02 and bottom time are independent.

For a given dive (or set of dives) within the recreational dive limits, you will feel better if you use an oxygen enriched mix.

No, you might feel better, not you will feel better. I too dive Nitrox and feel no different after a day of diving regular compressed air.

There is no scientific or clinical proof that Nitrox has any effect on how you feel after a dive. If you feel different it is in your mind. Not saying the mind isn't a powerful tool.

The thing is, you are still breathing compressed air whether it is enriched or not. This in itself also tires you out because breathing denser air(at depth) is harder on your system than breathing normal surface air. Nitrox definitly doesn't affect this part of you being tired at all. What tires you out is the extra effort required by your body to breath in and out as well as extract oxygen from the air. This is not a factor of the gas itself but the physics how our bodys breath compressed air at depth.

 

[JeffG]

What tires you out is the extra effort required by your body to breath in and out as well as extract oxygen from the air.

Got a cite for this.

 

[Xman]

let me get this straight what you guys are saying?

extend your bottom time to raise your P02 so that it gets closer to 1.4 in order to get more advantage of the nitrox to feel better after the dive?

I'm hoping that either you are not Nitrox qualified and are just enquiring, or you had a "moment" and got confused.

As another poster has said above...PO2 is not relative to bottom time but rather depth and initial gas mix.

Seems you are thinks of Oxygen exposure which is relative to bottom time.

 

[String]

Seriously, if you dive the same PPO2s, the gas doesn't matter. Dive 36% (assuming you are within 1.4 or whatever) as if it's air and you'll notice a difference.

I dont notice any difference at all and i quite often dive it as per air table.

 

[String]

I've never noticed any differnece in the way i feel after a dive
in my opinion there is no reason to use nitrox uless its part of your deco
or
you're doing really long dives above 130 feet and you want to cut down on deco

Id be inclined to agree with all of that.

 

[captain]

Of course you will feel better after diving nitrox. Isn't that one of the reasons the LDS's use as to why you should take the nitrox course. If they say you will feel better and you believe it you will. You wouldn't want say you spent the money for nothing.

 

[djanni]

I feel a difference and so does my wife. Pretty big difference too.

I have more energy after 5 dives in a day on Nitrox than I do after 3 on air.

Even if it's all in our heads we still feel better so it's worth the price.

 

[Scubar]

I have not noticed a differance when using nitrox. I only dive Nitrox when I do multiple dives during the course of a week. Like when I go on a dive vacation.

 

[artek]

Lean mix like
EAN21 is the bestest :05: