title: [Tolerance of +Gz loads by space physician Poliakov VV during the active phases of his 438-days space mission].
abstract: Tolerance of +Gz loads was assessed in space physician V.V. Polyakov during the active phases of his record, 438-day space mission. On the phases of insertion into orbit the +Gz-tolerance of the space physician was good; a fairly satisfactory g-tolerance during departure of orbit was extenuated by wearing of two anti-g suits (KARKAS-3 and CENTAUR) and administration of countermeasures against the unfavorable effects of space microgravity. His general health state and self-rating were not noticeably altered. +Gz loads in the course of descent from orbit instigated a syndrome characteristic of return to Earth from prolonged microgravity, i.e. a sensation of fierce pressure on the body, difficult breathing and speech, sine tachycardia, tachypnea, singular arrhythmias, petechial hemorrhage in the back integument, and vestibular/autonomous reactions. However, no evidence of any unusual physiological reactions that had never been seen in the other cosmonauts donned in the anti-g suits on earlier and less extended (from 65- to 366-day) missions were found. Extra systoles were registered on the phase of return to Earth after the 438-day but not previous 241-day mission of the space physician; they were probably associated with aging as he made his maiden flight at 47, and the second, at 53. The results speak in favor of the countermeasures against the adverse effects of microgravity applied during the mission, and the anti-g suits worn on the stage of return to Earth.
authors.affiliation: State Scientific Center "Institute of Medico-Biological Problems", Russian Federation.
authors.forename: A R
authors.initials: AR
authors.lastname: Kotovskaia
authors.forename: I F
authors.initials: IF
authors.lastname: Vil'-Vil'iams
authors.forename: S I
authors.initials: SI
authors.lastname: Elizarov
authors.forename: N V
authors.initials: NV
authors.lastname: Yliatovskii
authors.forename: L N
authors.initials: LN
authors.lastname: Gavrilova
authors.forename: V R
authors.initials: VR
authors.lastname: Liamin
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology*; D000337:Aerospace Medicine; D005500:Follow-Up Studies; D006439:Hemodynamics; D006801:Humans; D018471:Hypergravity; D008297:Male; D008875:Middle Aged; D013026:Space Flight; D019442:Space Suits
vernacular_title: Prenosimost' peregruzok +Gx vrachom-kosmonavtom V.V. Poliakovym na aktivnykh uchastkakh kosmicheskogo poleta dlitel'nost'iu 438 sutok.