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Thermal vest keeps troops cool in the heat of battle

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March 18, 2007

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March 19, 2007 Scientists at the University of Portsmouth are testing new high-tech thermal vests to be used by soldiers in Iraq to help them cope with the heat of battle. The vests use a combination of air, liquid and new applications of old technologies such as converting paraffin wax into liquid in chambers within the vests to absorb heat from the body.

The thermal vests - manufactured by an undisclosed United States-based military contractor - are expected to be used within two years by men and women on the frontline of the Iraq war.

Currently, soldiers in Iraq do not wear thermal cooling vests. But temperatures in Iraq can reach as high as 50C - and troops wearing heavy and dense biological and chemical protection suits are prone to heat-illness. The condition can seriously impair decision-making and judgement. In extreme cases, heat-illness can result in death.

University of Portsmouth thermal physiology scientist Mark Newton said the thermal vests would allow soldiers to perform their tasks better for longer periods of time.

"I can't reveal too much as we don't own the vests - they belong to an undisclosed military contractor. But what I can say is that the cooling power generated by these garments will make a difference for soldiers operating in extreme climates such as those experienced in Iraq," Mr Newton said.

"Heat-illness can be very severe and can kill people. We know that decision-making is also affected and impaired as your core temperature is elevated. This kind of technology and its application is really about how best to utilise and maintain your manpower, so people can perform better and over a longer period of time than what might otherwise be the case given certain extremes of climate."

The thermal vests are being tested on subjects in full combat fatigues at the newly-opened multimillion pound sports science facility at the University of Portsmouth - the Spinnaker Building.

The Spinnaker Building facilities include leading-edge laboratories, an integrated swimming flume, and two British Olympic Medical Centre accredited climatic chambers. UK Sport will use these facilities to help top athletes acclimatise at temperatures similar to those they will experience at the Beijing Olympics in 2008 where temperatures are expected to soar above 30C with 70 per cent humidity.

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About the Author
Mike Hanlon Mike grew up thinking he would become a mathematician, accidentally started motorcycle racing, got a job writing road tests for a motorcycle magazine while at university, and became a writer. As a travelling photojournalist during his early career, his work was published in a dozen languages across 20+ countries. He went on to edit or manage over 50 print publications, with target audiences ranging from pensioners to plumbers, many different sports, many car and motorcycle magazines, with many more in the fields of communication - narrow subject magazines on topics such as advertising, marketing, visual communications, design, presentation and direct marketing. Then came the internet and Mike managed internet projects for Australia's largest multimedia company, Telstra.com.au (Australia's largest Telco), Seek.com.au (Australia's largest employment site), top100.com.au, hitwise.com, and a dozen other internet start-ups before founding Gizmag in 2002. Now he writes and thinks. All articles by Mike Hanlon
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