Research: How to reduce lung residual volume?

[nimus27]

Hi Connor,

That's a very interesting method to mesure residual volume without having to pay for it, not very accurate, but probably very effective if you want to compare between two dives or after streching/diving exale methods as described in previous posts.

[nimus27]

Amazing Chris, 1.08l residual volume!

Any special tranning or genetic?

[marc25]

how to measure residual volume:
inhale
dive to 10 m (2bar pressure)
exhale completly
now in your lung is 2*rv because it is 2 bar at 10 m
surface again and measure how much air you exhale
you exhale 1*rv, 1*rv stays in your lungs

you can do this also at 4 m in a pool, but than you exhale 40% of rv

you can measure it at the surface like this.
a friend fills a 2 litre bottle with water and hold it closely under the surface,
now you have to exhale thru a tube into the bottle. the air is collected there and you can measure it.

hape this is understandable,

marc

[cdavis]

Thanks Marc, Your math is right, mine was wrong.

Connor

[chrismar]

Originally Posted by nimus27

Amazing Chris, 1.08l residual volume!

Any special tranning or genetic?

Always been a swimmer, been fit most of my life, but mostly just lucky genes probably.

I also lived at altitude for a long time and did diaphamatic inflections for the hell of it before I knew what they were. That may have helped too.