Re: Overweight and freediving
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Extra adipose tissue burns oxygen, every minute of every day, in 'basal' metabolic functions. This means that your 'baseline' oxygen consumption rate will be slightly higher than for a 'thin' person, and the actual difference would be based on how much extra adipose/fat tissue you are carrying around.
However, the extra fat also gives thermal insulation. This means you can get by with no wetsuit or a thinner wetsuit, compared to a thin person. This gives you a mild advantage which would somewhat make up for the disadvantage of your metabolism.
If you have no blood pressure problems, I see no reason you can't excel in the sport....
Keep in mind that seals are excellent divers, and they carry around a lot of fat! Some overweight freedivers have achieved pretty amazing results. Dieter Baumann of Austria dived to 57m with bifins in constant weight, and he is very overweight (probably weighs 275lbs+).
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Eric Fattah
Canada
http://www.liquivision.ca
"I encourage you to be free in the way you measure your success. I don’t claim to know what it will be like to be in your position, but I know that when you leave here, grades will be handed out differently. Your ability to gauge your success will largely depend on how you perceive it. You can shape it, set it up, feel it, and define it. Allow competition to turn inward. Do not depend on awards, money, or other validations." -Jonny Moseley
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