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freediving ability and short people

Thread Status: Hello , There was no answer in this thread for more than 60 days.
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cdavis

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Is there any correlation between considerably short people/low FVC and how long you can hold your breath for?
Doubtful. Other things are so much more important than average lung volume that it would be hard to determine.

I dive at about 60 percent of full lung. For me, that give substantially longer comfortable bottom times.
 

Avi

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Doubtful. Other things are so much more important than average lung volume that it would be hard to determine.

I dive at about 60 percent of full lung. For me, that give substantially longer comfortable bottom times.
has anyone done a study? are there any short people here that can quote their times? could be interesting.
hm, interesting about the 60% I always thought less is shorter, and why people who want the longest do packing?
 

cdavis

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There is a difference between comfortable dives and max dives, which I'm not interested in . The tiny amount of testing I've done suggests that lower lung volume for me might result in less max hold time. You can't compare that to short vs tall people because of the huge differences in c02 tolerance, chest diameter, training associated increases in ventilation volume, and a ton of other factors. For example, a diving buddy of mine is about 6 inches shorter and almost certainly has smaller lungs and ventilatory capacity. He can do much much longer dives than I can, I think because his co2 tolerance is very high.
 

Nathan Vinski

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I think size may play a role in absolute max performance.. most of the current or recent world record holders are quite tall in all disciplines..

But..

I agree with Conor on the comfortable Vs max dive.. I recently did a session where I did some slow 30m FIM dives on 1/2 lungs.. the result was 2:00 dives without any urge to breath..

At the end of the session I did a normal lung volume dive (inhale + 10 packs.. around 4L more air).. my dive time went up to 2:45 but with urge to breath..

If I based on comfort, nearly double the air gained me only 5-10s of comfort time..

Of course.. when I'm in proper shape ready to peak my max 1/2 lung time would be somewhere in the 2:45 range, and full inhale is up in the 3:30-4:00 if I push it, on slow 30m dives..

in short, height is probably a very insignificant factor until you're trying to set a world record..
..
 

xristos

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I think size may play a role in absolute max performance.. most of the current or recent world record holders are quite tall in all disciplines..

But..

I agree with Conor on the comfortable Vs max dive.. I recently did a session where I did some slow 30m FIM dives on 1/2 lungs.. the result was 2:00 dives without any urge to breath..

At the end of the session I did a normal lung volume dive (inhale + 10 packs.. around 4L more air).. my dive time went up to 2:45 but with urge to breath..

If I based on comfort, nearly double the air gained me only 5-10s of comfort time..

Of course.. when I'm in proper shape ready to peak my max 1/2 lung time would be somewhere in the 2:45 range, and full inhale is up in the 3:30-4:00 if I push it, on slow 30m dives..

in short, height is probably a very insignificant factor until you're trying to set a world record..
..
Most of the current holders. I think Variable weight record holder is on the short side Homar Leuci also. Trubridge is normal height. Colak, Malina, Molchanov I guess are below 1 90m. Correct me if I am wrong. I dont think super tall like 1 90 + offer much advantage
 
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