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Fluid Replacement and Heat Stress (1994) / Chapter Skim
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I Executive Summary
Pages 1-8

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From page 1...
... The Executive Summary also includes specific and general recommendations developed by the CMNR.
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From page 3...
... Other ions may or may not be needed, depending on sweat losses or losses from the gastrointestinal tract. Advances in exercise physiology also have demonstrated the value of carbohydrate solutions in providing energy for muscular activity in endurance events that last at least 60 minutes and involve vigorous exercise.
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From page 4...
... The maintenance of adequate fluid intake is of primary importance in the prevention of hypohydration that may otherwise occur under such conditions as prolonged air travel, extended working hours, wearing of chemical protective clothing, missed meals, or working in mountainous areas or in hot or extremely cold environments. Increased psychological stress associated with basic or field training exercises or anticipation of combat or actual combat may lead to extreme hypohydration due to decreased voluntary fluid intake.
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From page 5...
... The resultant reduced muscle and liver glycogen content will result in earlier fatigue and slower recovery. It is evident from the research reported at this workshop that a fluid replacement solution may play an important role in preventing fluid, electrolyte, and glycogen depletion, thereby maintaining or improving a soldier's performance.
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From page 6...
... ~ What are the effects of hypohydration on the absorption of electrolyte-carbohydrate solutions? ~ What factors regulate depletion of muscle and liver glycogen stores during negative caloric balance or prolonged physical activity?
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From page 7...
... The use of an electrolyte-carbohydrate-containing beverage may be applicable to a number of circumstances in the military such as the following: ~ Maintaining adequate fluid intake prior to military operations during which voluntary dehydration is probable. ~ Providing fluid, electrolyte, and carbohydrate replacement during physical work in a variety of environmental conditions, including high temperatures, humidities, or wearing of chemical protective clothing.
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From page 8...
... ~ The carbohydrate content should be provided as glucose or sucrose, malto-dextrin, or other complex carbohydrate in a concentration of 5% to 10%. ~ The value of additional magnesium, bicarbonate, and phosphate to compensate for gastrointestinal losses due to diarrhea or other gastrointestinal disturbances should be determined.
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Key Terms

  • fluid intake
  • fluid replacement
  • glycogen stores
  • electrolyte losses
  • heavy physical

  • heat stress
  • adequate fluid
  • liver glycogen
  • prolonged physical
  • replacement solution

  • protective clothing
  • replacement products
  • sweat rates
  • chemical protective
  • enhancing replenishment

  • physical work
  • environmental stress
  • following physical
  • glycogen depletion
  • losses due

  • caloric balance
  • negative caloric
  • physical demands
  • gastrointestinal losses
  • muscular activity

  • adequate hydration
  • gastrointestinal disturbances
  • emergency troop
  • volume provided
  • rehydration therapy


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