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Outdoor Sports
Oxygen was first used in high-altitude climbing, by the British Everest Mountaineering Team in 1922, which was the second time that humans climb Mount Everest. At that time, an oxygen device was applied as climbing oxygen supply and was verified the role of oxygen at ultra-high altitudes.
The use of oxygen has two main functions in mountaineering
Auxiliary: Reduce the mountain reaction, improve mountaineering efficiency, and reduce the possibility of serious high reversal during normal climbing. Generally used for mountains above 4,000 meters.
Treatment: When there is a serious high anti-time, timely use of oxygen, rapid withdrawal is the first priority to save lives. In the event of a physical injury, the use of oxygen helps to enhance the overall function, resistance and recovery rate of the body. Therefore, the mountaineering team’s preparing against the assault will take oxygen for emergency even not climbing 8,000-meter peak.
Serious hazards of hypoxia
Severe high altitude brain edema. May cause death within 24 hours of the onset of illness.
Severe high altitude pulmonary edema. May cause death within 48 hours of the onset.
Seriously affect the climber's consciousness, judgment, physical fitness, and thus lead to other dangers in the climb. For example, serious physical overdraft, resulting in inability to act and die; combined with low temperature environment, leading to serious loss of temperature caused by the breath; due to misjudgment, resulting in falling, lost, etc. causing death.
Prolonged in a state of severe hypoxia, resulting in central nervous system damage such as in the brain. This damage is generally irreversible.
Combined with low temperature environment, etc., resulting in severe frostbite.
With the rapid development of social and commercial activities, more and more outdoor sports and activities which require fast oxygen supply at spot were drawn forth, such as diving, scuba, marine research, underwater filming, underwater construction, underground or cave expedition and archaeological research.
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