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Titolo:
Air plethysmography: an alternative method for assessing peripheral circulatory adaptations during spaceflights
Autore:
Louisy, F; Cauquil, D; Andre-Deshays, C; Schroiff, P; Lazerges, M; Lafaye, C; Camus, AL; Fomina, G;
Indirizzi:
Serv Sante Armees, Inst Med Aerospatiale, F-91223 Bretigny Sur Orge, France Serv Sante Armees Bretigny Sur Orge France F-91223 igny Sur Orge, France CHU Rangueil, Clin Spatiale MEDES, Inst Med & Physiol Spatiales, F-31000 Toulouse 4, France CHU Rangueil Toulouse France 4 iol Spatiales, F-31000 Toulouse 4, France Inst Biomed Problems, State Sci Ctr, Moscow 123007, Russia Inst Biomed Problems Moscow Russia 123007 Sci Ctr, Moscow 123007, Russia Ctr Natl Etud Spatiales, F-31000 Toulouse, France Ctr Natl Etud SpatialesToulouse France F-31000 F-31000 Toulouse, France
Titolo Testata:
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 3-4, volume: 85, anno: 2001,
pagine: 383 - 391
SICI:
1439-6319(200108)85:3-4<383:APAAMF>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAD-DOWN TILT; EMPTYING CHARACTERISTICS; VENOUS HEMODYNAMICS; LEG; COUNTERMEASURE;
Keywords:
air plethysmography; spaceflights; venous hemodynamics; capillary filtration; calf muscle pump;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Louisy, F Serv Sante Armees, Inst Med Aerospatiale, BP 73, F-91223 Bretigny Sur Orge, France Serv Sante Armees BP 73 Bretigny Sur Orge France F-91223 France
Citazione:
F. Louisy et al., "Air plethysmography: an alternative method for assessing peripheral circulatory adaptations during spaceflights", EUR J A PHY, 85(3-4), 2001, pp. 383-391

Abstract

A new approach to the study of peripheral vascular hemodynamics in microgravity was initiated by designing an alternative methodology: air plethysmography (AP). This is the only technique that enables the quantification of vascular hemodynamics from gross measurements performed on the limbs. This paper reports a description of the device and of the measurement protocol. Acomparative study showed that AP yields results that are well correlated, although not in agreement, with those obtained by means of the reference method in the laboratory (mercury strain gauge plethysmography, MSGP; for venous capacity, correlation coefficient r=0.8, P<0.0001, limits of agreement 0.9ml.100 ml(-1) and 1.4 ml.100 ml(-1); for arterial flow index, correlation coefficient r=0.7, P<0.0006, limits of agreements -20.4 ml.min(-1) and 37.2 m.-min(-1); for half-emptying time, correlation coefficient r = 0.9, P <0.0001, limits of agreement -0.88 s and 0.77 s), and that are characterized by good reproducibility (coefficient of variation in general lower than 12%). Preliminary findings during spaceflight, on board the Mir Space Station, yielded data that is expected to improve our knowledge of vascular deconditioning in conditions of weightlessness.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/08/20 alle ore 00:30:18