Exercise Physiology: Theory and Application to Fitness and Performance 9th Edition by Scott Powers, Edward Howley

Exercise 5

Describe the physiological processes by which high-altitude residents in the Andes adapt to altitude compared to those who live in Tibet.

Step 1 of 3

PO₂ is partial pressure of oxygen. At higher altitudes, the proportions of gasses do not alter but the partial pressures change. The partial pressures decrease with increasing altitude. The same way, the density of air also decreases with increasing altitude. The atmospheric pressure is highest at the sea level. It decreases gradually as one climbs to a higher altitude.