Mr T's Wild Freedive

[IncreaseMyT]

Weird, that looks to me like it says hyperventilating increases the risk of shallow water blackout.

No it says it allows divers to stay down longer, but since it suppresses your urge to breath, it can increase your chance of a shallow water blackout, because you are more likely to stay down too long, increasing the chance that you run out of oxygen stores, or from decreased pressure.

Like I said because people are pushing their limits, not because of some magic effect of hyperventilating that causes you to black out.

Without a breathe up and taking a breath off a reg at 70 feet, then exhaling 33% of that breath it is not going to be easy for you to make it to the top, let alone have time to swim around first.

 

[saxman242]

No it says it allows divers to stay down longer, but since it suppresses your urge to breath, it can increase your chance of a shallow water blackout, because you are more likely to stay down too long, increasing the chance that you run out of oxygen stores, or from decreased pressure.

Like I said because people are pushing their limits, not because of some magic effect of hyperventilating that causes you to black out.

Without a breathe up and taking a breath off a reg at 70 feet, then exhaling 33% of that breath it is not going to be easy for you to make it to the top, let alone have time to swim around first.

Yes, everyone that blacks out does so because they pushed the limits too far. Hyperventilating tends to lead them to not know where the limits are, so it causes them to push the limits too far. It's totally irrelevant if it actually allows you to stay down longer or not. All that matters is it leads people to stay down too long.

Remember that when it comes to swimming up, there's a huge difference between a breath taken at depth and a breath taken at the surface.

 

[IncreaseMyT]

Yes, everyone that blacks out does so because they pushed the limits too far. Hyperventilating tends to lead them to not know where the limits are, so it causes them to push the limits too far. It's totally irrelevant if it actually allows you to stay down longer or not. All that matters is it leads people to stay down too long.

Remember that when it comes to swimming up, there's a huge difference between a breath taken at depth and a breath taken at the surface.

But what you don't understand is you just proved my point that you and everyone else have been arguing so far. Breathing off a regulator at deep depths after a breath hold dive increases your chance of blackout. Because you think you can stay down as you would taking a breath from the surface after a breathe up, but that simply isn't the case. So we are back to square one, no you cannot take a breath off a reg at 70 feet and continue free diving as normal. Thats not how it works. So now the only way you know how to come up is from the urge to breath, which is gonna happen after just 20-30 seconds in this scenario.

 

[Colliam7]

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A ScubaBoard Staff Message...

What started out as a reasonable discussion of an interesting topic appears to have degenerated into a somewhat MIS-informative series of exchanges. This thread is now temporarily closed pending further review.

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