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 cheekie chick
Joined: 10/5/2006
Msg: 4
Underwater swimming improves oxygen transferPage 1 of 1    
Do you think that would hurt me or help me ? I have a lung disease that has badly scarred my lungs which I now require oxygen 24/7. I also have another one called pulmonary hypertension its high pressures from the right artery of the heart to the lungs . The medication I am taking is not working so I am now to see a transplant specialist. What you are talking about seems really interesting what do you think ? Any suggestions would be great cause I am scared to death . Thanks
Joined: 12/1/2008
Msg: 5
Underwater swimming improves oxygen transfer
Posted: 1/6/2009 8:11:52 AM
As a licenced SCUBA diver i can tell you its true... you increase your lung volume as well as the efficency rate at which your body transfers O2 to CO2. You also increase your ability to control the breathing reflex allowing you to hold your breath for longer periods of time.

normal humans have along volume of about 6-7L - a world record holding Free Diver has a lung volume of about 15-18L which allows them to hold their breath for periods of up to 4-5 min while assending and decending well over 100m over water with no breathing gear.
Joined: 6/8/2006
Msg: 6
Underwater swimming improves oxygen transfer
Posted: 2/9/2009 7:39:42 PM
Free diving is a really stunning thing to look into, if you haven't heard about it before. Really amazing what the human body can accomplish.

I dive as well. For those that don't, the lower you go, the more pressure you experience around you, which affect how your blood gases act. This is why divers need different mixes of "air" if they go below certain depths. If you've heard of "the bends" or a decompression tank after diving, it all has to do with blood gases and pressure.
Joined: 10/11/2008
Msg: 7
Underwater swimming improves oxygen transfer
Posted: 7/8/2009 7:52:31 AM
^^^^^Be very careful
Shallow water blackout is a loss of consciousness caused by cerebral hypoxia
towards the end of a breath-hold dive in water typically shallower than five metres (16 feet),
when the swimmer does not necessarily experience an urgent need to breathe
and has no other obvious medical condition that might have caused it.

Divers are extending their dive by closing down the body's natural breathing mechanism,
NOT by increasing oxygen load.
Hyperventilation, or over-breathing, is often used by divers in the mistaken belief
that this will increase oxygen (O2) saturation.

Victims drown quietly underwater without alerting anyone to the fact that there is
a problem and are typically found on the bottom of the pool
Joined: 10/11/2008
Msg: 8
Underwater swimming improves oxygen transfer
Posted: 7/8/2009 5:15:03 PM
Just don't do the hyperventilating does no good.
Normal breaths and go under water for a bit to submerge the body.
Try not to concentrate on the time or distance spent underwater.
When you need a breath of air, return to the surface.
Joined: 4/12/2008
Msg: 9
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Underwater swimming improves oxygen transfer
Posted: 8/4/2009 10:51:25 PM
Yes, thanks for this important info.
Joined: 10/6/2009
Msg: 10
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Underwater swimming improves oxygen transfer
Posted: 1/21/2010 10:54:12 AM
I wonder if it is less to do with breath holding and more to do with controled breathing for O2 performance. My pulse prior to beginning a swimming regamen was in the mid 70's. After 2 weeks of swimming (I normally do 4 strokes and a breath) my resting pulse had dropped to the low 50s. After another week combined with some meditation I was able to get my heart rate down to 43-44 for atleast a minute. (never tested longer)
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