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Humans in Mountain Environments. Julie Malmberg November 4, 2009. Impacts of Mtn Environments. Lack of oxygen Cold temperatures. Hypoxia. Definition = State when body is deprived of oxygen Generalized hypoxia is also known as “altitude sickness” or “acute mountain sickness”

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humans in mountain environments

Humans in Mountain Environments

Julie Malmberg

November 4, 2009

impacts of mtn environments
Impacts of Mtn Environments
  • Lack of oxygen
  • Cold temperatures
hypoxia
Hypoxia
  • Definition = State when body is deprived of oxygen
  • Generalized hypoxia is also known as “altitude sickness” or “acute mountain sickness”
  • Ratio of oxygen does not change, but volume decreases with altitude
  • Does not effect everyone equally
symptoms of hypoxia
Symptoms of Hypoxia
  • Headaches, dizziness, confusion
  • Lack of appetite, nausea, vomiting
  • Fatigue, weakness, drowsiness
  • Swelling of hands, feet, face
  • Insomnia
  • Pins and needles in limbs/fingers
  • Shortness of breath during activity
  • Rapid Pulse
  • Pulmonary Edema (fluid in lungs)
    • Coughing
    • Fever
    • Shortness of breath
  • Cerebral Edema
    • Headache that does not get better with pain medication
    • Unsteady gait
    • Increased vomiting
    • Gradual loss of consciousness
hypoxia video
Hypoxia Video

High Altitude Training – 25,000 ft

treatment
Treatment
  • Descend!
  • Avoid alcohol consumption
  • Avoid strenuous activity
  • Increase in altitude gradually (controlled ascent)
  • Medication
  • Supplemental oxygen
  • Drink water
  • Treatment in portable hyperbaric chamber
  • Steroids
review
Review
  • Mountain Environments main impacts on people
    • Lack of Oxygen
      • Short term = altitude sickness
      • Long term = physiological changes
    • Cold Weather
      • Short term = hypothermia – moderate to severe
      • Long term = physiological changes