Author(s): Bijender Singh and Dr. Sandeep Bhalla

Abstract:
Risk factors for developing high altitude (2500-3500 metres) illness include previous history of high-altitude illness, a faster rate of ascent, higher elevation, poor hydration, increased intensity of physical activity, and individual variability. Slow ascent to altitude is the hallmark of prevention for all acute high-altitude illnesses. Three main syndromes of altitude illness may affect travellers: acute mountain sickness, high altitude cerebral oedema, and high-altitude pulmonary oedema. Allowing for the physiologic adaptations of acclimatization to occur through graded and gradual ascent to high altitude is the best strategy for safe participation at altitude. The adaptive process of acclimatization provides for improved aerobic capacity at altitude, which is critical for optimal athletic performance.

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