COLD ACCLIMATIZATION I N.ESKIMO.
0 N EXPOSURE to cold the body has a complicated physiological problem to solve. There is a limit to the heat it can produce to provide for an increased heat loss and during exposure of much severity a heat deficit is incurred. While peripheral tissues are cooling, the central body temperature must b...
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| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.551.3524 http://pubs.aina.ucalgary.ca/arctic/Arctic7-3%264-343.pdf |
| Summary: | 0 N EXPOSURE to cold the body has a complicated physiological problem to solve. There is a limit to the heat it can produce to provide for an increased heat loss and during exposure of much severity a heat deficit is incurred. While peripheral tissues are cooling, the central body temperature must be kept within a very narrow range if the function of vital organs is to be maintained. If the accomplishment of this results in the failure to maintain a certain delivery of heat to the limbs, the usefulness of hands and feet is impaired. On the other hand if circulation to the extremities and to the surface of the trunk is greater than that required for necessary function, the heat loss is needlessly large and central body temperature is prejudiced. There is obviously room for subtle adjustment if vital needs are to be met and working capacity reasonably maintained in an economic fashion. It is the sum of the adjustments following repeated or prolonged exposure to cold which consti-tutes acclimatization to cold. There has been doubt that acclimatization to cold exists in man. Many early experiments in the laboratory supported the view that it does not occur |
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