Rank: Super forum user 
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Can anyone save me a trawl thru' the literature?
I have it in mind that rubbing hands and fingers is to be discouraged as it can damage fine capillaries, particularly when its cold? Am I right?
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Rank: Super forum user 
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The only time I have heard of anything similair is in relation to people suffering from cold temperature induced ill health effects when there is the potential for ice crystals to have formed in the tissue extremities.
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Rank: Forum user
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What temperature conditions are we talking here about?
Sounds like an urban legend to me. And surely if ice crystals start to form in your tissue it would be too late for rubbing to have any effect or for you even be able to rub your fingers.
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Rank: Super forum user
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CdC wrote:What temperature conditions are we talking here about?
Sounds like an urban legend to me. And surely if ice crystals start to form in your tissue it would be too late for rubbing to have any effect or for you even be able to rub your fingers. Frostbite is most common on the fingers, toes, nose, ears, cheeks and chin. Because of skin numbness, you may not realize you have frostbite until someone else points it out. Frostbite occurs in several stages: Frostnip. The first stage of frostbite is frostnip. With this mild form of frostbite, your skin pales or turns red and feels very cold. Continued exposure leads to prickling and numbness in the affected area. As your skin warms, you may feel pain and tingling. Frostnip doesn't permanently damage the skin. Superficial frostbite. The second stage of frostbite appears as reddened skin that turns white or pale. The skin may remain soft, but some ice crystals may form in the tissue. Your skin may begin to feel warm — a sign of serious skin involvement. If you treat frostbite with rewarming at this stage, the surface of your skin may appear mottled, blue or purple. And you may notice stinging, burning and swelling. A fluid-filled blister may appear 24 to 36 hours after rewarming the skin. Severe (deep) frostbite. As frostbite progresses, it affects all layers of the skin, including the tissues that lie below. You may experience numbness, losing all sensation of cold, pain or discomfort in the affected area. Joints or muscles may no longer work. Large blisters form 24 to 48 hours after rewarming. Afterward, the area turns black and hard as the tissue dies.
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Rank: Super forum user 
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It's still part of the HSE advice 'massage and exercise fingers during a break' It doesn't say unless there cold.
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Rank: Super forum user
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Quite the opposite, I thought the advice was to flex and move the hands and fingers to aid circulation?
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Rank: Forum user
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I suspect you can flex and move fingers, but rubbing any part of the body that has been exposed to extreme cold is a no-no.
Something in my distant memory says that rubbing to heat up cold body parts could divert blood from the vital organs.
Although maybe that's from my skiing days.
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Rank: Forum user
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Watcher wrote:I suspect you can flex and move fingers, but rubbing any part of the body that has been exposed to extreme cold is a no-no.
Something in my distant memory says that rubbing to heat up cold body parts could divert blood from the vital organs.
Although maybe that's from my skiing days. When treating a hypothermia victim you must not warm up the extremeties too fast or the cold blood will go to critical parts, which will now lose their heat. Nothing to do with rubbing hands or fingers when cold.
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Rank: Super forum user
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Erm..... Have we lost the plot here? The OP is asking about rubbing the hands/fingers when it cold - and is relating to HAVS and not hyperthermia victims.
The question (as I see it) not about hyperthermia or frostbite, if you have hyperthermia or frostbite you would need to go to hospital, and not be concerned about using vibrating equipment or rubbing you hands together to keep worm.
When using vibrating equipment in the cold the hands need to be worm to increase the blood flow. This can be achieved by wearing gloves or by rubbing the hands together, if that will help keeping them worm.
So YES when using vibrating equipment in the cold, do keep the hand worm, if this involves rubbing them together the do it, then why not. I certainly do when scraping the ice from my car with my credit card.
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Rank: Super forum user
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I know how to spell warm -!!!!!!!
Please forgive me - Its POETS Day.....
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