Contributors to beat-to-beat stroke volume variability during acute mental stress in healthy volunteers

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Beitragende

Abstract

Acute mental stress elicits sympathetic activation, increasing heart rate and shortening the QT interval, but it is unknown whether this activation translates to stroke volume (SV) changes. Multivariate power spectral decomposition was used to assess the influence of heart rate and QT variabilities on SV variability at rest and during acute mental stress. Acute mental stress elicits mild but statistically significant increase in SV variability. Heart rate variability contributes almost one third of SV variability, while the contribution of QT variability is below 3%. In conclusion, although heart rate variability appears to contribute directly to increase in SV variability during acute mental stress, most of SV variability is attributed to sources independent of heart rate and QT variabilities.Clinical Relevance-Acute mental stress elicits small fluctuations in stroke volume in healthy volunteers. Its significance for clinical populations remains to be established.

Details

OriginalspracheEnglisch
TitelAnnual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Herausgeber (Verlag)IEEE
Seiten1-4
Seitenumfang4
Band45
PublikationsstatusVeröffentlicht - 1 Juli 2023
Peer-Review-StatusJa

Konferenz

TitelAnnual International Conference of the IEEE Engineering in Medicine and Biology Society
KurztitelEMBC
Veranstaltungsnummer45
Dauer24 - 27 Juli 2023
Webseite
BekanntheitsgradInternationale Veranstaltung
OrtInternational Convention Centre
StadtSydney
LandAustralien

Externe IDs

ORCID /0000-0003-4012-0608/work/149081394
Scopus 85179643949
Mendeley e275b69e-b30a-33b6-b43d-796ea310d30e

Schlagworte

Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis

Ziele für nachhaltige Entwicklung

ASJC Scopus Sachgebiete

Schlagwörter

  • stroke volume variability, QT interval variability, heart rate variability, acute mental stress, psychological stress, Mental stress