Cardiovascular changes in parabolic flights assessed by ballistocardiography

Q. Deliere, P. F. Migeotte, X. Neyt, I. Funtova, R. M. Baevsky, J. Tank, N. Pattyn

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Résumé

This paper presents a comparison of the cardiovascular changes observed in microgravity as compared to ground based measurements. The ballistocardiogram (BCG), the electrocardiogram (ECG) and the transthoracic impedance cardiogram (ICG) were recorded on five healthy subjects during the 57th-European Space Agency (ESA) parabolic flight campaign. BCG is analyzed though its most characteristic wave, the IJ wave complex that can be identified along the longitudinal component of BCG and which has been demonstrated to be linked to cardiac ejection. The timings between the contraction of the heart and the ejection of blood in the aorta are analyzed via the time delay between the R-wave of the ECG and the I and J-waves of BCG (RI and RJ intervals respectively). Our results show that the IJ complex presents a larger amplitude in weightlessness and suggest that stroke volume (SV) increases in microgravity. We assume that ballistocardiography is an efficient method to assess the ventricular performance.

langue originaleAnglais
titre2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
Pages3801-3804
Nombre de pages4
Les DOIs
étatPublié - 2013
Evénement2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013 - Osaka, Japon
Durée: 3 juil. 20137 juil. 2013

Série de publications

NomProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
ISSN (imprimé)1557-170X

Une conférence

Une conférence2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
Pays/TerritoireJapon
La villeOsaka
période3/07/137/07/13

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