Acclimatization

Under an acclimatization or acclimation refers to the individual physiological adaptation of an organism within its genetic make-up to changing environmental factors which adjustment even reversible ( reversible ) is.

Altitude acclimatization in humans

The only way to adapt to the human organism at great heights, the acclimatization. Through a complex process of adaptation, the lack of supply can be balanced with oxygen at high altitude in part. Due to the different ability of hypoxic ventilatory drive the adaptation procedure is different for each person. The normal height typical changes are manifested in:

  • Hyperventilation
  • Shortness of breath
  • Reduced urination
  • Changes in breathing ( Cheyne -Stokes respiration )
  • Sleep disorders and strange dreams
  • Often excruciating headache ( cerebral edema, particularly cerebral edema ).

The adaptation process that occurs in various stages, is a highly complex and still not fully explored dar. process in different phases of adjustment is initially compensated by increasing the respiratory and cardiac output of the lower O2 partial pressure. This requires, produces a respiratory alkalosis, which attempts to compensate for the body. The alveolar- vascular reflex of the oxygen exchange of alveoli and pulmonary capillaries is improved. In the blood, there is a right shift of the hemoglobin dissociation curve, attenuated by the respiratory alkalosis. Thus, the hematocrit rises sharply, which impairs the flow properties of the blood and can lead to thrombus formation. The organism can adapt only at altitudes up to 7000 m ( height gain due to the reduction of the critical oxygen partial pressure by chemosensory activated breathing time volume increase) permanently; at greater heights is a long-term degradation of all bodily functions.

Characteristics for a successful runny acclimatization are:

  • A returned to normal resting heart rate value
  • Training proper endurance performance
  • Deeper breathing at rest and during exercise
  • Increased urination.
  • Thermoregulation
  • Biosoziologie and sociobiology
  • Training ( Sports )
  • Mountaineering
Cheyne–Stokes respiration Lung
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