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

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Contributors

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

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
PublisherIEEE
Pages1-4
Number of pages4
Volume45
Publication statusPublished - 1 Jul 2023
Peer-reviewedYes

Conference

TitleAnnual International Conference of the IEEE Engineering in Medicine and Biology Society
Abbreviated titleEMBC
Conference number45
Duration24 - 27 July 2023
Website
Degree of recognitionInternational event
LocationInternational Convention Centre
CitySydney
CountryAustralia

External IDs

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

Keywords

Research priority areas of TU Dresden

DFG Classification of Subject Areas according to Review Boards

Subject groups, research areas, subject areas according to Destatis

Sustainable Development Goals

ASJC Scopus subject areas

Keywords

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