Peripheral Vasoconstriction in fingers demonstrated using Infrared

What Is Peripheral Vasoconstriction?

This physiological response has been mentioned so many times that I decided it needed its own specific post to plug into the Cold Water Swimming articles section. What is peripheral vasoconstriction? Following¬†immersion in cold water, blood flow is reduced in human limbs and skin. Why does peripheral vasoconstriction happen? Peripheral vasoconstriction occurs to allow the…

Review: Amphibia Sports Ring

The simple ideas are often the best ones. I’ve previously reviewed Irish Company Amphibia Sport‘s excellent Evo Sports Bag and I recently received in the post one of the company’s long-awaited (for me) silicon Sports Ring. I forgot to test swim it the weekend after I received it, so it had to wait until this…

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Where did my Claw go?

Cold, my favourite subject. With so many ways to talk about it. Every year I note changes in my adaptation and responses. The fun in this, is that I can treat myself like a long-term experiment and see what happens, it makes the cold swimming even more interesting, adds more personal value to it. My…

Peripheral vaso-constriction from cold water swimming – in pictures

I’ve often talked about vaso-constriction. As a reminder, upon immersion in cold water, in order to retain core warmth, blood flow to the extremities and skin slows. Upon exiting cold water a swimmer’s skin will feel really cold, even if the swimmer is experienced and may actually feel completely comfortable. I watched the BBC’s Wild…