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Water lost during exercise

ansonrinesmith
Posts: 741 Member
So I saw a story on BBC (Boom goes the Theory or something like that), that showed during strenuous exercise only a few ounces were lost through sweat. I feel like I sweat WAY more than that, and yesterday I weighed before and after a run (30 min) and was 2lbs less. Thinking I needed to re-hydrate that much. Is this normal? Has anyone else done a pre/post comparison?
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Replies
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So I saw a story on BBC (Boom goes the Theory or something like that), that showed during strenuous exercise only a few ounces were lost through sweat. I feel like I sweat WAY more than that, and yesterday I weighed before and after a run (30 min) and was 2lbs less. Thinking I needed to re-hydrate that much. Is this normal? Has anyone else done a pre/post comparison?0
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https://www.youtube.com/watch?v=f1_i7KiTyDk
So it was more than I remember (900ml) almost 4 cups. So maybe I'm not that abnormal.0 -
it can vary from person to person but weight doesnt lie
"a pints a pound the world around" I know, annoying, but you will remember it, if you lost 2 lbs of water thats 2 pints (4 cups)
(this is true of water and not other substances, I am not looking for a density arguement here)0 -
I've lost as much as 6 pounds in a single run. It's perfectly normal. Just make sure you get enough hydration after to make it up.0
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You would have lost some weight from your breath, both water vapor on exhales and CO2/O2 exchange. Not sure how much exactly but CO2/O2 is where genuine, lasting non-water-based weight loss comes from.0
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