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Nutrition at high altitude.

I M Simon-Schnass1

  • 1Medical Department, Hermes Arzneimittel GmbH, Grosshesselohe, Germany.

The Journal of Nutrition
|March 1, 1992
PubMed
Summary
This summary is machine-generated.

High altitude stays risk malnutrition due to limited fresh food. Vitamin E supplementation countered decreased physical performance and blood flow linked to increased lipid peroxidation in studies.

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Area of Science:

  • Altitude physiology
  • Nutritional science
  • Human performance

Background:

  • High-altitude environments pose risks of malnutrition due to limited fresh food availability.
  • Micronutrient roles at high altitude are under-researched, with limited data on Vitamin E.
  • Physiological challenges at high altitude include decreased physical performance and impaired blood flow.

Purpose of the Study:

  • To investigate the effects of prolonged high-altitude exposure on physical performance and blood flow.
  • To evaluate the potential protective role of Vitamin E supplementation against altitude-induced physiological changes.
  • To explore nutritional requirements and recommendations for high-altitude environments.

Main Methods:

  • Two placebo-controlled studies were conducted.

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  • Participants underwent prolonged stays at high altitude.
  • Food records were used to assess dietary intake.
  • Physical performance and blood flow parameters were measured.
  • Lipid peroxidation levels were assessed.

    • Main Results:

    • Prolonged high-altitude exposure led to decreased physical performance.
    • Deterioration of blood flow was observed at high altitude.
    • Increased lipid peroxidation was identified as a likely cause of these changes.
    • Vitamin E supplementation effectively prevented the decrease in physical performance and blood flow deterioration.

    Conclusions:

    • Vitamin E may play a crucial role in mitigating negative physiological effects of high-altitude exposure.
    • Further research is needed to establish specific nutritional requirements for high-altitude environments.
    • Evidence supports the need for tailored nutritional recommendations for individuals living or staying at high altitudes.