Baroreflex sensitivity derived from the Valsalva manoeuvre: A physiological protective factor for anxiety induced by breathing CO2-enriched air

Chiara Di Credico; Michael Rosenberg; Peter Eastwood; Peter Buzzacott; Jennifer Walsh

doi:10.1016/j.ijpsycho.2022.06.019

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Baroreflex sensitivity derived from the Valsalva manoeuvre: A physiological protective factor for anxiety induced by breathing CO2-enriched air

Journal article

Peer reviewed

Baroreflex sensitivity derived from the Valsalva manoeuvre: A physiological protective factor for anxiety induced by breathing CO2-enriched air

Chiara Di Credico, Michael Rosenberg, Peter Eastwood, Peter Buzzacott and Jennifer Walsh

International journal of psychophysiology, Vol.179, pp.101-109

2022

DOI: https://doi.org/10.1016/j.ijpsycho.2022.06.019

PMID: 35809687

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Abstract

Cardiac vagal activity

Baroreceptor reflex

Emotions

Anxiety sensitivity

CO2 challenge test

Hypercapnia

This study aimed to determine the capacity of baroreflex sensitivity, derived from the Valsalva manoeuvre (BRS_v), to predict state anxiety induced by a biological stressor (CO2 inhalation). Healthy adults (n = 50) breathed 7.5 % CO2-enriched air for 8 min, preceded and followed by breathing medical air for 5 min. State anxiety was evaluated with a visual analogue scale. Anxiety sensitivity (Anxiety Sensitivity Index-3; ASI-3) and trait anxiety (Trait form of the State-Trait Anxiety Inventory; STAI_T) served as cognitive-affective predictors. BRS_v was adopted as a physiological predictor. Multiple regression analysis revealed that BRS_v predicted lower anxiety during CO2 exposure, and attenuated the effect of ASI-3 in increasing anxiety. No significant effects were found for STAI_T. This is the first study to identify baroreflex sensitivity as a strong protective physiological factor for anxiety beyond the effect of anxiety sensitivity.

Details

Title: Baroreflex sensitivity derived from the Valsalva manoeuvre: A physiological protective factor for anxiety induced by breathing CO2-enriched air
Authors/Creators: Chiara Di Credico - The University of Western Australia
Michael Rosenberg - The University of Western Australia
Peter Eastwood - The University of Western Australia
Peter Buzzacott - Curtin University
Jennifer Walsh - The University of Western Australia
Publication Details: International journal of psychophysiology, Vol.179, pp.101-109
Publisher: Elsevier
Number of pages: 9
Identifiers: 991005592647207891
Murdoch Affiliation: Vice Chancellery
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 1 Clinical & Life Sciences; 1.218 Autonomic Regulation; 1.218.642 Heart Rate Variability
Web Of Science research areas: Neurosciences; Physiology; Psychology; Psychology, Biological; Psychology, Experimental
ESI research areas: Neuroscience & Behavior