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Old 02-03-2013, 10:36 AM   #5
LeeD
Bionic Poster
 
Join Date: Dec 2008
Posts: 30,293
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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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