Hyperventilation and hypovolaemia during exercise at altitude.
D000531:Altitude; D001774:Blood Chemical Analysis; D001810:Blood Volume; D001811:Blood Volume Determination; D006400:Hematocrit; D006439:Hemodynamics; D006801:Humans; D006985:Hyperventilation / Q000150:complications*; D000860:Hypoxia; D008297:Male; D005082:Physical Exertion; D013147:Spirometry; D013178:Sports Medicine; D014882:Water-Electrolyte Balance