that makes you so tired and hungry??
I had a tough 4200m this morning and I’m wiped and feel like I could eat an entire wafflehouse.
I never seem to get this tired or hungry from a tough bike or run session, its always the swimming.
Anyone else out there notice this too?
Is because of the cold water. You burn a lot of energy just plain trying to keep warm.
As for tired, running is more tiring to me.
that makes you so tired and hungry??
I had a tough 4200m this morning and I’m wiped and feel like I could eat an entire wafflehouse.
I never seem to get this tired or hungry from a tough bike or run session, its always the swimming.
Anyone else out there notice this too?
I swim on my lunch, sets around 1800-2000 yards, and I’m famished afterward. My pool water seems pretty warm, so I’m not sure it has anything to do with the water temperature.
Even if you pool is 85*, that is 10+ degrees lower than your body temp. Conduction or convention or whatever it is, heat flows away from your body into the water.
Even if you pool is 85*, that is 10+ degrees lower than your body temp.
Why would I burn more calories staying warm in 85F water than during a run in 50F open air?
Running is fantastically good at elevating your core temp. That’s what happens in warmup, actually: core temp elevates 1-2*
Then again, when I swim in our 82* water, I get out nice and warm, my core temp must be up a bit too.
I know that when I swim in water under 80*, I shiver like crazy, and that is my body burning energy trying to stay warm… I’m really lean and get cold quite easily in a cold pool.
I don’t know the answer to your question though. We’ve had this discussion before on here so let me search.
http://forum.slowtwitch.com/gforum.cgi?post=1610253;search_string=swimming%20%2B%20hunger;#1610253
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http://forum.slowtwitch.com/gforum.cgi?post=1610253;search_string=swimming%20%2B%20hunger;#1610253
Thanks. Interesting.
1 - You’re not (I assume) effectively naked when running in 50F weather.
2 - More importantly - water conducts heat away from your body 10x faster than air.
Even if you pool is 85*, that is 10+ degrees lower than your body temp.
Why would I burn more calories staying warm in 85F water than during a run in 50F open air?
Water conducts heat away from your body much better than air. It’s also why touching room temperature air doesn’t feel cold, but touching room temperature metal feels cool.
Even if you pool is 85*, that is 10+ degrees lower than your body temp.
Why would I burn more calories staying warm in 85F water than during a run in 50F open air?
Because water, being far denser than air, can absorb far more heat than can air. It’s not the temperature of the medium that is important, it’s the amount of heat said medium can hold. There are several orders of magnitude difference in the heat capacity of air and water.
I would have a hard time running in 50°F in just a speedo.
jaretj
Is because of the cold water. You burn a lot of energy just plain trying to keep warm.
As for tired, running is more tiring to me.
That’s because you are a more efficient swimmer than you are a runner.
To the OP, also swimming is much much more of a whole body activity (when done properly) than cycling or running.
John
It seems swimming as an upperbody endurance activity will relatively burn more carbs than fat compared to lower body exercise like running… This helps explain appetiite differences between workouts and body fat differences between atheletes. The brain’s only energy source are carbs so the post swim hunger may be a reaction to a relative hypoglycemic message. Brain survival (real or percieved) is a powerfull message generator.
"That’s because you are a more efficient swimmer than you are a runner. "
Maybe. WIll have to ponder that one.
"That’s because you are a more efficient swimmer than you are a runner. "
Maybe. WIll have to ponder that one.
Partially, anyway. You also have full body support and no thumping up and down.
John
I would have a hard time running in 50°F in just a speedo.
jaretj
Sure, but try swimming in 50 degree water in just a speedo. Way colder.