Bodyfat test using a swimming pool. Try this.
Is it possible to use a swimming pool to
measure body fat?
For example, blowing out all the air in your
lungs (or as much as possible) and then seeing how much you
sink to the bottom of the pool. I suppose once your
body exceeds the density of water You will sink.
Water is only 1 gram per cubic centimeter, so I'm
guessing you don't have to be super lean to sink all
the way to the bottom. Maybe 20% Bodyfat?
Maybe measuring the speed you sink as well could
give additional info on your density.
I tried this and I sink all the way to the bottom
pretty quickly and can lay flat on my back.
Anyone else tried this before?
If you've measured your Bodyfat by calipers I'm curious
how your pool test results are.
This makes a lot of sense.
Anything below 14% and you will sink is what I have heard. Though I am not sure if that figure is supposed to be with full lungs or empty lungs. Need to do more research. I sink either way so I know I am relatively lean.
The method would be very inaccurate. Your colon usually contains a considerable -- and very variable -- amount of air and other gases, and there's no accurate way to compensate for this or to expel it all. Look at abdominal X-rays and you can see these large areas of air.
It's not accurate due to bone density differences and height to weight ratios.
Until I was 35, I could sit at the bottom of a pool as long as I could hold even a full breathe.
Twas tough to pass SeniorLifeSaving, as they make you float for 15 minutes on your back without moving hands or feet...or was that WSI?
Now float like a cork at 5'11" and 155 lbs.
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