title: Evaluation of cardiac rhythm disturbances during extravehicular activity.
abstract: This study represents the first systematic evaluation of dysrhythmias before, during, and after spaceflight including extravehicular activity (EVA). The data, based on 7 Shuttle crew members, revealed a nonsignificant decrease in ventricular and supraventricular ectopy during EVA, suggesting that the incidence of dysrhythmias is no greater during EVA than with any other phase of a mission or preflight.
authors.affiliation: University of Texas Medical Branch, Department of Internal Medicine, Galveston, USA.
authors.forename: A C
authors.initials: AC
authors.lastname: Rossum
authors.forename: M L
authors.initials: ML
authors.lastname: Wood
authors.forename: S L
authors.initials: SL
authors.lastname: Bishop
authors.forename: H
authors.initials: H
authors.lastname: Deblock
authors.forename: J B
authors.initials: JB
authors.lastname: Charles
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D015716:Electrocardiography, Ambulatory; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D012720:Severity of Illness Index; D013026:Space Flight; D018531:Spacecraft; D014893:Weightlessness