Effects of lower body negative pressure on physiologic changes due to four weeks of hypoxic bed rest.
D000222:Adaptation, Physiological; D000293:Adolescent; D000328:Adult; D001274:Atmospheric Pressure; D001794:Blood Pressure; D001810:Blood Volume; D001835:Body Weight; D005080:Exercise Test; D006339:Heart Rate; D006400:Hematocrit; D006801:Humans; D000860:Hypoxia; D066298:In Vitro Techniques; D008297:Male; D010101:Oxygen Consumption; D012146:Rest; D013575:Syncope