jendut said:if shivering in water (and extremities turning whiteish/yellow) is bad, Jamie would have pulled me out of Tahoe a couple of hours in! It is like Greg said, when the shivering STOPS thing are headed in a bad direction...
if shivering in water (and extremities turning whiteish/yellow) is bad, Jamie would have pulled me out of Tahoe a couple of hours in! It is like Greg said, when the shivering STOPS thing are headed in a bad direction...
Shivering is the body’s last attempt to warm itself. Like with any exercise, like with all your swimming, not just at speed, your body is burning more ATP again in a desperate attempt to warm you up. Like all your metabolic processes this is an ancient evolutionary step, from the eons before we had mastered clothes and heat, even before we’d shed our fur, cold nights on the African plains. And here are, us stupid swimming apes, voluntarily shedding our learned advantages and protections and stepping into a lethal environment where we no longer have a natural protection. And all we have left to protect us from death by hypothermia is a desperate last little biological process. A biological process that evolved … FOR LAND. Not for water where direct conduction of heat away from the body is 30 times the convection heat-loss rate of air. This isn’t the normal shivering we experience during Afterdrop, because then it is helpful for rewarming.In water, shivering is dangerous and accelerates remaining energy and heat loss.Shivering will not heat you in water. It will not protect you. Every experienced open water swimmer will tell you, that once shivering in the water develops you are in real danger. (And that’s excluding the fact that you were already in danger merely by being in the cold water to begin). This on our scale, where cold water itself is low down.If shivering starts, get out of the water.
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Niek said:That's a missed opportunity to swim and practice with suit.
That's a missed opportunity to swim and practice with suit.
I don't wear a wetsuit; it gives the ocean a sporting chance.
Some carry wet suits in their bags. But few wear one.
Molly Nance, Lincoln, Nebraska