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Waterproof Oximeter ?

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ryan65

Active Member
Nov 11, 2013
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Hi
I was wondering if there is anything that gives you your oxygen levels during a dive.
Wouldn't that help if there as something that could alert you when your oxygen levels are low , and thus make the dive safer
thanks
 
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The instabeat project is designing a HR monitor for swimmers, worn on the swimmers temple. I think it could be made to read SaO2 levels. And it has been proposed, but I don't think they'll put it in as the priority is to help swimmers train better. Freedivers are to small a market.
 
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If it's worn on your temple, how are you supposed to read the display? lol Or is it for coaches or whatever.
 
I've worn a 'water resistant' pulse oxy meter on my finger during some DYN testing. I covered my entire hand in a bag, packed in some super absorbent fabric, and duct taped the whole mess around my wrist. Very awkward but it was worthwhile for me to get some readings for pool DYN. It is not suitable for diving and not really useful for safety since to get a reading you have to stop swimming/moving, position the oxy meter, and wait several seconds for it to lock onto a reading, all this while continuing your breathhold.
 
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I've worn a 'water resistant' pulse oxy meter on my finger during some DYN testing. I covered my entire hand in a bag, packed in some super absorbent fabric, and duct taped the whole mess around my wrist. Very awkward but it was worthwhile for me to get some readings for pool DYN. It is not suitable for diving and not really useful for safety since to get a reading you have to stop swimming/moving, position the oxy meter, and wait several seconds for it to lock onto a reading, all this while continuing your breathhold.
What reading you get before BO? SPo% 60 or more?
 
What reading you get before BO? SPo% 60 or more?

I have never BO'd either in training or comp, and have only samba'd once or twice. When I used to train very challenging dry exhale sets I wore an oxy meter and usually didn't go past 65%, although I have done holds into the 50's that way. I could go further but I am mostly training for spearfishing... even after a 4 min deep spearing/line dive I am not very hypoxic. It takes me a while to become hypoxic when doing full lung statics, kinda boring. I think most experienced freedivers who have been training regularly could go well below 60% without BO although most anyone is going to lose some degree of functional ability (sensation, vision, memory, higher reasoning) much sooner. The threshhold for BO is also going to vary from day to day and hold to hold, even with the same diver.
 
my dry exhale 40 s but the oxy shown 70% and I can't hold ,I wonder if I can go till 60 s and oxy will shown the same readings ,after some training of course
 
Train safe. I think and oxy-meter can be a useful training tool, but you have to realize those are just numbers that may not have much bearing on real world freediving ability, and be careful about comparing yourself to others. A sport like basketball is pretty good analogy. If you are 5'2", no matter how hard you train you probably won't ever get a $10 million a year NBA contract. But that doesn't mean you can't enjoy the sport.

You've got to realize also that a lot of top freedivers have been involved in competitive swimming, spearfishing, or recreational freediving since early childhood and have spent a lifetime--whether they knew it or not--developing their freediving ability. I started swimming competively at the age of 6, and swam seriously for 11 years, into the national level, and then coasted through some years of swimming college. I got lucky with a few other gifts like ability to EQ. Besides that I don't know if any 'natural' ability I have is the result of all that swim training throughout childhood and puberty or just genes. Probably a mix of both. So when I started spearfishing and freediving on a regular basis I had many advantages.

This is not meant to discourage you, just enjoy yourself, training hard, and challenge yourself, but don't ever beat yourself up by comparing yourself to other divers. In this sport it can get you killed.
 
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