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Title: | The impact of anxiety on postural control: CO2 challenge model |
Authors: | Taylor, ANW Low, DC Walsh, GS Holt, N |
Keywords: | anxiety;balance control;CO2 challenge;heart rate;motor control;psychophysiology |
Issue Date: | 6-Oct-2022 |
Publisher: | Wiley Periodicals LLC on behalf of Society for Psychophysiological Research |
Citation: | Taylor, A.N.W. et al. (2022) 'The impact of anxiety on postural control: CO2 challenge model', Psychophysiology, 0 (in press), e14192, pp. 1 - 11. doi: 10.1111/psyp.14192. |
Abstract: | Copyright © 2022 The Authors. Anxiety and balance and postural control are linked via common neural pathways, such as the parabrachial nucleus network. A laboratory-based model of general anxiety disorder (GAD) using the CO2 challenge, has potential to be used to observe this relationship, potentially mimicking subjective, autonomic, and neuropsychological features of GAD. The current feasibility study used the CO2 challenge to explore postural control changes in healthy adults. It was predicted that during the CO2 condition, participants would show increased postural sway path length and decreased sway stability, compared with a normal air breathing condition. To assess this, heart and breathing rate, quiet standing postural sway path length, sway dynamic stability, and subjective measures of emotion were measured either before and after or during and after the inhalation conditions. Results demonstrated that CO2 inhalation led to both an increase in sway path length and reduced sway stability compared to the air breathing conditions; the effect on sway path lasted after the inhalation of CO2 had ceased. Additionally, replication of HR and subjective measures of emotion were observed when comparing air and CO2 conditions. This provides experimental evidence that CO2 inhalation can affect balance, suggestive of shared mechanisms between anxiety and balance performance, as well as indicating that the CO2 model of GAD is suitable to look at changes in balance performance in healthy adults. Future use of this model to explore factors that can reduce the influence of GAD on balance would be beneficial as would a more detailed exploration of the neural pathways associated with the associated comorbidity. |
Description: | Data availability statement: The data that support the findings of this study are openly available in osf.io at https://doi.org/10.17605/OSF.IO/WZS65, reference number WZS65. Appendix S1: Supporting information: Table S1 Means and Standard deviations of balance data at different time point and different inhalation condition, available at: https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1111%2Fpsyp.14192&file=psyp14192-sup-0001-supinfo.docx (Word 2007 document , 23.1 KB). Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. |
URI: | https://bura.brunel.ac.uk/handle/2438/25306 |
DOI: | https://doi.org/10.1111/psyp.14192 |
ISSN: | 0048-5772 |
Other Identifiers: | e14192 ORCiD ID: Daniel C. Low - https://orcid.org/0000-0003-4940-4527. |
Appears in Collections: | Dept of Life Sciences Research Papers |
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