Accession Number : ADA289192

Title :   Human Fluid Balance and Dehydration During Cold Weather Military Operations.

Descriptive Note : Technical note,

Corporate Author : ARMY MEDICAL RESEARCH AND MATERIEL COMMAND (PROVISIONAL) FORT DETRICK MD

Personal Author(s) : Freund, Beau J. ; Sawka, Michael N.

PDF Url : ADA289192

Report Date : DEC 1994

Pagination or Media Count : 40

Abstract : Not unlike exposure to hot environments, exposure to the cold can disrupt body fluid balance. While the mechanisms responsible for cold-induced dehydration (i.e., cold diuresis, increased respiratory water loses, fluid losses associated with wearing bulky winter clothing, poor fluid availability/delivery, inadequate thirst sensation,etc.) are somewhat different than those for hot environments, the impact of the fluid imbalance is often quite similar. For example, cold-induced dehydration can negatively influence both physical and cognitive performance as well as disrupt normal thermoregulation. It is also thought that dehydration may increase the susceptibility to peripheral cold injuries. This paper reviews the literature regarding factors influencing body fluid balance in the cold as well as the impact of the fluid imbalance on soldier performance and mission accomplishment. Described are potential countermeasures for preventing or delaying body fluid imbalances in the cold, including recent advances in hyperhydration techniques.

Descriptors :   *MILITARY OPERATIONS, *PERFORMANCE(HUMAN), *STRESS(PHYSIOLOGY), *COLD WEATHER OPERATIONS, CONTROL, LOW TEMPERATURE, MILITARY PERSONNEL, DELIVERY, IMPACT, EXPOSURE(GENERAL), TEMPERATURE, ARMY PERSONNEL, HUMANS, WATER, COGNITION, AVAILABILITY, WINTER, BALANCE, RESPIRATORY SYSTEM, FLUIDS, HOT WEATHER, WOUNDS AND INJURIES, LOSSES, BODY FLUIDS, CLOTHING, COUNTERMEASURES, DEHYDRATION, DIURESIS, HOT REGIONS.

Subject Categories : Stress Physiology
      Military Operations, Strategy and Tactics
      Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE