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Monday, April 19, 2004The constant vibration affects the arteries, causing them to constrict, which in turn may starve nerves, they told the conference, part of a larger meeting called Experimental Biology 2004. Govindaraju studied rats, whose tails have nerves and arteries that are very similar in size and structure to those in the human hand. They vibrated the rat's tails for four hours at a similar frequency to what would be experienced by a jackhammer or chainsaw operator. The cells lining the artery got pushed together as the artery constricted, and little bulges called vacuoles could be seen coming from individual cells. 'The smaller the artery or the more constricted it was, the more vacuoles you got,' Govindaraju said in an interview. 'It is like a little balloon,' Riley added. If the vibration goes on for too long, the ballon breaks off at its narrowest point and the cell is permanently damaged. 'That piece of the cell is going to die,' Riley said." You can read more about vibration injuries at The Institute for the Study of Human Vibration. posted by Sydney on 4/19/2004 10:48:00 PM 0 comments 0 Comments: |
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