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| General Freediving General discussion on Freediving. |
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#1
October 8th, 2007
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Im an aerial photographer and im in the air quite a bit. Ranging 0-10,000ft
Wondering about going from negative to positive pressure and vice versa when freediving/spearfishing. Bound to have some medical affects? Not really diving much depth yet it all but just curious of anyone is involved in similar conditions or knows? Last edited by Mucko; October 8th, 2007 at 19:12. 
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#2
October 8th, 2007
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I read a study done on WWII bomber pilots a long time ago and the medical community was quite surprised at the slow heart rate. Of course they were spending almost half their life at altitude. I've spent 10-20,000 hours at about 2,000 meters, sometimes for over 12 hours and it sure didn't hurt. More and more I'm hearing of athletes spending nights in 'the tent'. Time at altitude in an unpressurized airplane has to be a plus.
__________________
Aloha Bill A man is wise, only to the extent that he is aware of his own ignorance. Bill Bonner '08
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#3
October 8th, 2007
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Be a little careful about freediving and flying. DCS is not impossible. A friend of mine got a case of skin bends after a day of spearing muttons in 50-60 ft, (long bottom times) then flying home in an unpressurized seaplane a few hours later. There is lots of stuff about DCS on the forums; some is close to on point. Search for DCS, etc. and see what you find. As far as I know, there isn't much in the way of research on this specific subject. However, personally, I don't fly the same day as doing a bunch of 20 m or deeper dives.
Connor Connor
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#4
October 9th, 2007
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After a few days of freediving (though not below 73'), I called my dive doctor to see when I could fly. He said 24 hours after diving, it is okay to fly. On the flip side, he said I could dive as soon as the plane's landing gear touched down. In case you're wondering why in the world I have a dive doctor, it is because I am a science diver. I'm paranoid about DCS, and though there has been a recently-published report by DAN about the risks associated with freediving...the info out there isn't encompassing enough to allow me to err outside of caution.
--Billie
__________________
Billie Ball "Letting the days go by/let the water hold me down Letting the days go by/water flowing underground Into the blue again/after the money's gone Once in a lifetime/water flowing underground" --Talking Heads
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#5
October 10th, 2007
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i m a pro skydiver almost every day in the air up to 13.000 ft and freediving only after skydiving,
in case i freedive deep (100ft+) in the morning, i don t skydive the same day, as well as my recover time on surface is 3 times the dive time never had a problem so far respect the elements wolf
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#6
October 11th, 2007
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Quote:
__________________
Best regards, 
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#7
October 13th, 2007
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__________________
"stand up, move away from your computer and go somewhere you have never been before... a cafe, a country, a lake or an ocean....." (stolen and twisted by me) www.saltfreedivers.com www.learntofreedive.com www.saltfreedoubledip.com
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