Alterations in the Metabolic and Sympathetic Response to Cold Exposure after Cold Air Acclimation
The armed services, primarily the Navy and Coast Guard, are tasked with maintaining free passage and security in many geographical locations encompassing tropical and polar conditions. While personnel performance in heat has been well studied and ameliorative guidelines implemented, little is known...
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ftdtic:ADA216817 2023-05-15T13:57:46+02:00 Alterations in the Metabolic and Sympathetic Response to Cold Exposure after Cold Air Acclimation Hesslink, R. L. Armstrong, D. W. Kowalski, K. Allen, L. D. Reed, H. L. NAVAL MEDICAL RESEARCH INST BETHESDA MD 1989-12-11 text/html http://www.dtic.mil/docs/citations/ADA216817 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA216817 en eng http://www.dtic.mil/docs/citations/ADA216817 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Anatomy and Physiology Stress Physiology *METABOLISM *EXPOSURE(PHYSIOLOGY) *RESPONSE(BIOLOGY) *BODY TEMPERATURE FUNCTIONS POLAR REGIONS POSITION(LOCATION) LOW TEMPERATURE HORMONES HIGH RATE SKILLS HUMANS AIR COGNITION INTENSITY COLD REGIONS SURVIVAL(GENERAL) REDUCTION SHORT RANGE(TIME) CLIMATE ADAPTIVE SYSTEMS STANDARDIZATION MANUAL OPERATION TROPICAL REGIONS ELEVATION ADAPTATION MENTAL ABILITY HEAT BALANCE GEOGRAPHY HYPOTHERMIA ANTARCTIC REGIONS COAST GUARD SYMPATHETIC NERVOUS SYSTEM ACCLIMATIZATION SHIVERING PE63706N WUDN246556 Text 1989 ftdtic 2016-02-20T20:45:19Z The armed services, primarily the Navy and Coast Guard, are tasked with maintaining free passage and security in many geographical locations encompassing tropical and polar conditions. While personnel performance in heat has been well studied and ameliorative guidelines implemented, little is known about performance and survival in the cold. Acute cold exposure elicits frank shivering concomitant with a short-term elevation in basal metabolism. Extended cold exposure can produced mild to severe hypothermia resulting in reduced cognitive function and manual dexterity, thus, having a tremendous effect on mental and physical performance. Moreover, personal safety and health can be compromised in such environments. The ability to adapt to these cold climates and possible improve one's performance has been extensively investigated. There is strong evidence that localized cold adaptation can occur over many years of exposure. Whether this adaptation is due to local factors, central factors, or both is not clear. The mechanism responsible for whole body cold adaptation is not clearly understood, but it is generally believed that various types of whole body cold adaptation are possible. Serum triiodothyronine (T3) is the primary hormone involved with many thermoregulatory and adaptive phenomena. As circulating T3 levels appear to be decreased with prolonged Antarctic residence, we sought to determine whether T3 supplementation and multiple cold air exposures would enhance human thermoregulation during a standardized cold air challenge. Text Antarc* Antarctic Defense Technical Information Center: DTIC Technical Reports database Antarctic |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Anatomy and Physiology Stress Physiology *METABOLISM *EXPOSURE(PHYSIOLOGY) *RESPONSE(BIOLOGY) *BODY TEMPERATURE FUNCTIONS POLAR REGIONS POSITION(LOCATION) LOW TEMPERATURE HORMONES HIGH RATE SKILLS HUMANS AIR COGNITION INTENSITY COLD REGIONS SURVIVAL(GENERAL) REDUCTION SHORT RANGE(TIME) CLIMATE ADAPTIVE SYSTEMS STANDARDIZATION MANUAL OPERATION TROPICAL REGIONS ELEVATION ADAPTATION MENTAL ABILITY HEAT BALANCE GEOGRAPHY HYPOTHERMIA ANTARCTIC REGIONS COAST GUARD SYMPATHETIC NERVOUS SYSTEM ACCLIMATIZATION SHIVERING PE63706N WUDN246556 |
spellingShingle |
Anatomy and Physiology Stress Physiology *METABOLISM *EXPOSURE(PHYSIOLOGY) *RESPONSE(BIOLOGY) *BODY TEMPERATURE FUNCTIONS POLAR REGIONS POSITION(LOCATION) LOW TEMPERATURE HORMONES HIGH RATE SKILLS HUMANS AIR COGNITION INTENSITY COLD REGIONS SURVIVAL(GENERAL) REDUCTION SHORT RANGE(TIME) CLIMATE ADAPTIVE SYSTEMS STANDARDIZATION MANUAL OPERATION TROPICAL REGIONS ELEVATION ADAPTATION MENTAL ABILITY HEAT BALANCE GEOGRAPHY HYPOTHERMIA ANTARCTIC REGIONS COAST GUARD SYMPATHETIC NERVOUS SYSTEM ACCLIMATIZATION SHIVERING PE63706N WUDN246556 Hesslink, R. L. Armstrong, D. W. Kowalski, K. Allen, L. D. Reed, H. L. Alterations in the Metabolic and Sympathetic Response to Cold Exposure after Cold Air Acclimation |
topic_facet |
Anatomy and Physiology Stress Physiology *METABOLISM *EXPOSURE(PHYSIOLOGY) *RESPONSE(BIOLOGY) *BODY TEMPERATURE FUNCTIONS POLAR REGIONS POSITION(LOCATION) LOW TEMPERATURE HORMONES HIGH RATE SKILLS HUMANS AIR COGNITION INTENSITY COLD REGIONS SURVIVAL(GENERAL) REDUCTION SHORT RANGE(TIME) CLIMATE ADAPTIVE SYSTEMS STANDARDIZATION MANUAL OPERATION TROPICAL REGIONS ELEVATION ADAPTATION MENTAL ABILITY HEAT BALANCE GEOGRAPHY HYPOTHERMIA ANTARCTIC REGIONS COAST GUARD SYMPATHETIC NERVOUS SYSTEM ACCLIMATIZATION SHIVERING PE63706N WUDN246556 |
description |
The armed services, primarily the Navy and Coast Guard, are tasked with maintaining free passage and security in many geographical locations encompassing tropical and polar conditions. While personnel performance in heat has been well studied and ameliorative guidelines implemented, little is known about performance and survival in the cold. Acute cold exposure elicits frank shivering concomitant with a short-term elevation in basal metabolism. Extended cold exposure can produced mild to severe hypothermia resulting in reduced cognitive function and manual dexterity, thus, having a tremendous effect on mental and physical performance. Moreover, personal safety and health can be compromised in such environments. The ability to adapt to these cold climates and possible improve one's performance has been extensively investigated. There is strong evidence that localized cold adaptation can occur over many years of exposure. Whether this adaptation is due to local factors, central factors, or both is not clear. The mechanism responsible for whole body cold adaptation is not clearly understood, but it is generally believed that various types of whole body cold adaptation are possible. Serum triiodothyronine (T3) is the primary hormone involved with many thermoregulatory and adaptive phenomena. As circulating T3 levels appear to be decreased with prolonged Antarctic residence, we sought to determine whether T3 supplementation and multiple cold air exposures would enhance human thermoregulation during a standardized cold air challenge. |
author2 |
NAVAL MEDICAL RESEARCH INST BETHESDA MD |
format |
Text |
author |
Hesslink, R. L. Armstrong, D. W. Kowalski, K. Allen, L. D. Reed, H. L. |
author_facet |
Hesslink, R. L. Armstrong, D. W. Kowalski, K. Allen, L. D. Reed, H. L. |
author_sort |
Hesslink, R. L. |
title |
Alterations in the Metabolic and Sympathetic Response to Cold Exposure after Cold Air Acclimation |
title_short |
Alterations in the Metabolic and Sympathetic Response to Cold Exposure after Cold Air Acclimation |
title_full |
Alterations in the Metabolic and Sympathetic Response to Cold Exposure after Cold Air Acclimation |
title_fullStr |
Alterations in the Metabolic and Sympathetic Response to Cold Exposure after Cold Air Acclimation |
title_full_unstemmed |
Alterations in the Metabolic and Sympathetic Response to Cold Exposure after Cold Air Acclimation |
title_sort |
alterations in the metabolic and sympathetic response to cold exposure after cold air acclimation |
publishDate |
1989 |
url |
http://www.dtic.mil/docs/citations/ADA216817 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA216817 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA216817 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766265659578122240 |