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June 12th, 2007, 01:48 PM
| #3 (permalink) |
| Custom User Title  Join Date: Nov 2005 Location: Denmark
Posts: 437
   | Quote: (Originally Posted by Igor Beades)  That effect is called "Oxygen window". You can find a lot of info in the Internet. It also interacts with VO2 max. Both are profusely discussed in medicine books. I am not sure if you misunderstood my question or i don't understand your answer, but as far as i know the oxygen window has to do with shaping deco curves, gas choices and partial pressures and has nothing to do with the effects of exercise on gas transfer? Just to clarify i wan't to know if there is any scientific articles that looks at a hyposis like this "running 5 km each week makes your lungs more effective at transferring gas".Cheers Jonas Last edited by jluttichau; June 12th, 2007 at 01:52 PM. |
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June 12th, 2007, 02:20 PM
| #4 (permalink) |
| New Member  Join Date: Jun 2006 Location: Crazy Spain
Posts: 119
| Sure the problem is with my English :-P This is not a only-lungs issue. The interface at alveoli level depends on gradient and surface of lungs tissue. The main thing is "transport" from/to the tissues. The gas travels by your blood during ongassing and during offgassing. As much as your blood has empty spaces for transport as much as your deco will be more efficient. These spaces can be filled with N2, He or CO2 (that solves easily). Transport also depends on what big is your *map* of arteries and veins and this map is bigger as you have more "roads" for perfund your tissues. The difference between parcial pressure of innert gas in the arterial system and the pp of i.g. in the venous system is called OW. The question is: "which way a diver can increase this difference (and increase the number of "roads" for gas)?" And the answer: with fitness (providing a good vascularity) In the other hand, increasing the VO2max with training would provide a more effective gas interchange. Would you please search for "VO2max" in Google? Cheers, IB Last edited by Igor Beades; June 12th, 2007 at 03:08 PM. |
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June 12th, 2007, 02:27 PM
| #5 (permalink) |
| Custom User Title Join Date: Nov 2005 Location: Denmark
Posts: 437
| Quote: (Originally Posted by Igor Beades) The question is: "wich way a diver can increase this difference (and increase the roads)?" And the answer: with fitness (providing a good vascularity) That is not the question that interests me, I'm trying to see if there is any scientific research supporting Camerons statement in his book.. namely that exercise increases the lungs effiency in transferring gas.Cheers Jonas |
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June 12th, 2007, 05:13 PM
| #6 (permalink) |
| New Member  Join Date: Feb 2006 Location: hurghada
Posts: 849
| Quote: (Originally Posted by jluttichau) That is not the question that interests me, I'm trying to see if there is any scientific research supporting Camerons statement in his book.. namely that exercise increases the lungs effiency in transferring gas. I got a paper from DAN that they sent me while I was discussing a similar issue with the boys from DUKE.Cheers Jonas They sent it while I was discussing the case I mentioned a few threads ago. If you ask nicely, I could let you have a look-see (pretty interesting)
__________________ It has just dawned on me.... We are all just recycled stardust  Ahmed Adly, www.deepvoyage.com |
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June 12th, 2007, 05:37 PM
| #7 (permalink) |
| Custom User Title Join Date: Nov 2005 Location: Denmark
Posts: 437
| Quote: (Originally Posted by Ahmed Adly, Marlin Inn DC) If you ask nicely, I could let you have a look-see (pretty interesting) I would love to read it, pretty please with sugar on top  Cheers Jonas |
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June 13th, 2007, 10:23 AM
| #8 (permalink) |
| New Member  Join Date: Feb 2006 Location: Guildford
Posts: 85
| Quote: (Originally Posted by jluttichau) Hi, Obviously excersise and being fitter is a good thing but would it not be the case that if your lungs are more efficent, then you be on gassing more efectivly as well as off gassing, so you can't say I ran 5k yesterday I'll take 10% off my deco or I ran 20k yesterday I don't need and deco!I read in Camerons book that execise increases the lungs efficiency to transfer gas, does anyone know of any scientific articles that touch upon this? Cheers Jonas Fin |
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June 13th, 2007, 03:46 PM
| #9 (permalink) |
| New Member  Join Date: Dec 2005 Location: Columbia, MD--USA
Posts: 175
| Quote: (Originally Posted by jluttichau) Hi, Rubicon might have something. I read in Camerons book that execise increases the lungs efficiency to transfer gas, does anyone know of any scientific articles that touch upon this? Cheers Jonas Rubicon Research Repository: Home Or you may just want to drop Cameron a note. He's a great guy and is probably just waiting for someone to ask Chris |
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June 13th, 2007, 03:50 PM
| #10 (permalink) |
| Custom User Title Join Date: Nov 2005 Location: Denmark
Posts: 437
| Quote: (Originally Posted by cmalinowski) Or you may just want to drop Cameron a note. He's a great guy and is probably just waiting for someone to ask Yes, i did.. he wrote me and said he's working on a clearer explanation with academic references. But if someone on this forum had a link to an article on the subject it would be easier and faster Cheers Jonas |
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