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Crude way to measure lung capacity...

Thread Status: Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.

caffrey

New Member
Dec 23, 2004
19
2
0
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Is there any easy way to measure my lung capacity without using any special equipment? I can picture blowing air into a submerged container to displace the water but is there some way I am not thinking of? Thanks
 

Bill

Baron of Breathold
Oct 17, 2001
1,805
332
188
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Try blowing into a balloon for vital capacity or measuring your weight/buoyancy in a pool.
Aloha
Bill
 

cdavis

Well-Known Member
Jan 21, 2003
4,006
779
218
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Hi Pat,

Your idea with a couple of clear plastic jugs and a hose works quite well. Not sure how the absolute accuracy of its results compare with the "proper" equipment, but I found it to be very repeatable and just fine for most purposes.

Connor
 

dallasdiver

Well-Known Member
Feb 3, 2004
346
94
68
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Hey Bill
The balloon idea sounds good, but if your blown up many balloons it seems that the consistensy varies quite a lot. Also after you have blown a balloon up and stretch it out, it blows up much easier the second time.

It seems that the hose to a container would be a reasonable good crude method. I have a large 4 cup measuring cup made of glass that I have used in a tub of water. I reversed breathed through my snorkle and blew air into the completely flooded measuring cup. I can give you consistant measurable results. I was able to see the slight increases in my progress.
 
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caffrey

New Member
Dec 23, 2004
19
2
0
36
Great guys, thanks. I will use the container/tube idea. I too think that a balloon compresses the air in it and unless you then put the air into a container to measure that it would be hard to guage using a baloon.
 

Pablo

Breather... so far!
Mar 9, 2004
347
69
0
I use a Papylus 6l (it holds about 6.5l) water container. Is one of those transparent foldable containers you find on outdoors shops. It doesn't take any pressure to inflate then, and you feel easily when they are full (the point where you start to apply pressure).

I measured the total volume (water and measuring cup). I blow it up and see more or less what is left. I then add a bit of water and blow it again until I can inflate totally the container. Last I measure the water I've add.

This was the theory... after two sessions I find out I can blow totally the container and lost interest on the mater.
 

naiad

Apnea Carp
Supporter
Oct 11, 2003
2,897
449
138
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The jug and hose works fine for me... It's hard not to spill water everywhere though.

Lucia
 
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