title: Systolic time intervals during lower body negative pressure.
mesh_terms: D000293:Adolescent; D000328:Adult; D000337:Aerospace Medicine; D001794:Blood Pressure; D002302:Cardiac Output; D004780:Environment, Controlled; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D008297:Male; D011312:Pressure; D013997:Time Factors; D016276:Ventricular Function