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07-23-2013, 10:23 PM | #1 |
Airframes
Join Date: Oct 2009
Location: Kaneohe, HI
Age: 37
Posts: 138
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Urge to breathe
Has anyone else noticed a stronger urge to breathe with a mouth full of air and cheeks puffed out vs empty and cheeks deflated? Is it just me being silly?
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"From birth, man carries the weight of gravity on his shoulders. He is bolted to earth. But man has only to sink beneath the surface and he is free." Jacques Yves Cousteau |
07-24-2013, 08:20 AM | #2 |
Catholic Spearo
Join Date: Aug 2010
Location: Omaha, NE
Age: 39
Posts: 769
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Re: Urge to breathe
Taking a full capacity breath leaves me a bit uncomfortable so I try to stay at 90-95% as I find I can relax a bitter better on the bottom. I'm not sure what the point of puffing out cheeks would be as you wouldn't benefit from the oxygen in your cheeks and it would add additional pressure and possibly bubbles from your mouth.
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07-24-2013, 11:01 AM | #3 |
Registered User
Join Date: Apr 2012
Location: Seattle WA/Orange County CA
Posts: 171
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Re: Urge to breathe
I definatley feel this, I never have my cheeks puffed out, it makes me have to breathe way more.
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07-24-2013, 01:00 PM | #4 |
Lance
Join Date: Mar 2011
Location: Los Angeles
Posts: 1,432
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Re: Urge to breathe
The difference is probably throat lock. Cheeks puffed you might not be using your throat to close your airway. A throat lock is safer and necessary for deeper dives...
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07-24-2013, 01:12 PM | #5 |
Catholic Spearo
Join Date: Aug 2010
Location: Omaha, NE
Age: 39
Posts: 769
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Re: Urge to breathe
Can you expand on the concept of "throat lock?" What is it, how do you use it, what are the implications on safety? This is a new concept for me.
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He said to them, Come after me, and I will make you fishers of men. |
07-24-2013, 01:34 PM | #6 |
Lance
Join Date: Mar 2011
Location: Los Angeles
Posts: 1,432
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Re: Urge to breathe
You probably hold your breath this way naturally. When near samba or just when under duress a diver may lose their throat lock and exhale a bit. Basically take a full breath and hold it. Open your mouth without exhaling. You're holding your breath with your throat/esophagus: throat lock. On land if you opened the throat air would escape out your nose (unless you can uncouple the soft palate from the esophagus, which is something that takes training) but wearing a mask you could hold your breath with your cheeks and the mask would keep you from losing air out your nose.
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07-24-2013, 02:36 PM | #7 |
Catholic Spearo
Join Date: Aug 2010
Location: Omaha, NE
Age: 39
Posts: 769
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Re: Urge to breathe
Ah, I see. The natural closing of the larynx from the Dive Reflex could be compromised by cheek holding. Got it. I guess I just don't know anyone who cheek holds. I actually like to keep my mouth open slightly when I'm laying on the bottom.
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He said to them, Come after me, and I will make you fishers of men. |
07-24-2013, 03:06 PM | #8 |
Registered User
Join Date: Feb 2013
Location: Venice, FL
Posts: 1,684
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Re: Urge to breathe
I usually get a baby breath of air at about 20 feet on my ascent too as a result of the air you used to equalize your mask expanding. Most divers lose this air out of their mask but it can be a very crucial little bonus...just suck it in through your nose.
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07-26-2013, 08:55 AM | #9 |
Lance
Join Date: Mar 2011
Location: Los Angeles
Posts: 1,432
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Re: Urge to breathe
Yeah, that is a good habit. I don't bother most of the time in California because I'm just not diving deep/long enough that my mask has much reclaimable air, but when spearing deep enough in other waters where I've had to eq the mask more than twice times, I try to always do that. I don't like to ride my mask EQ so I tend to put a lot of air into my mask.
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07-26-2013, 12:46 PM | #10 |
Registered User
Join Date: Jun 2012
Posts: 31
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Re: Urge to breathe
I'm scared there's a little water in the nose pocket of my mask that will get in my sinuses if I breathe the mask air back in.
Wouldn't having cheeks full of air be useful after you have gone a way down? If you go just 10m, the pressure on the air in your lungs doubles and the lungs shrink. At that point, you could breathe in the extra air from your mouth. You would have to remember not to hold that in on the way up, though - lung over expansion injury isn't something freedivers usually have to worry about, but if you were packing and have a big mouth I suppose you could do real damage... |
07-26-2013, 01:19 PM | #11 |
Registered User
Join Date: Feb 2013
Location: Venice, FL
Posts: 1,684
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Re: Urge to breathe
I've never had an issue with a few drops of water in my nose pocket. Actually, with the pressure of the air you don't even really have to take a big pull, just a small one and the air rushes in. If your looking up while your ascending the water won't be sitting right under your nostrils anyways, unless there's a lot of water in there. If you watch video of a diver ascending from a deep dive it is amazing how much wasted air escapes put from the mask.
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07-30-2013, 05:14 PM | #12 | |
Lance
Join Date: Mar 2011
Location: Los Angeles
Posts: 1,432
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Re: Urge to breathe
Quote:
Water in my sinuses isn't a big deal, it just flushes into my mouth. |
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