Adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat

Abstract Height-induced postural threat influences standing balance control. However, it is unknown if minimizing individuals’ emotional response to threat moderates this relationship. This study repeatedly exposed individuals to height-induced postural threat to determine if reducing the emotional...

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Autores principales:	Martin Zaback, Allan L. Adkin, Mark G. Carpenter
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3742988a0ad74f92b26d3f5a77aa728b
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spelling	oai:doaj.org-article:3742988a0ad74f92b26d3f5a77aa728b2021-12-02T15:09:00ZAdaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat10.1038/s41598-019-48722-z2045-2322https://doaj.org/article/3742988a0ad74f92b26d3f5a77aa728b2019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48722-zhttps://doaj.org/toc/2045-2322Abstract Height-induced postural threat influences standing balance control. However, it is unknown if minimizing individuals’ emotional response to threat moderates this relationship. This study repeatedly exposed individuals to height-induced postural threat to determine if reducing the emotional response to threat influences standing balance control. Sixty-eight young adults completed a series of standing trials at LOW (0.8 m above ground, away from edge) and HIGH (3.2 m above ground, at edge) postural threat conditions. Emotional state was assessed using self-report and electrodermal measures. Standing balance was assessed through analysis of centre of pressure (COP) movement and lower leg electromyographic activity. Individuals’ emotional response to threat was attenuated following repeated threat exposure. However, threat-induced changes in standing balance were largely preserved. When initially threatened, individuals leaned backward and demonstrated smaller amplitude and higher frequency of COP adjustments; these balance outcomes did not change following repeated threat exposure. Only high frequency COP oscillations (>1.8 Hz) and ankle muscle co-contraction showed any adaptation; regression analyses showed that these behavioural adaptations were accounted for by a combination of emotional and cognitive state changes. This suggests that some threat-induced standing balance changes are more closely linked with the emotional response to threat than others, and are therefore amendable to intervention.Martin ZabackAllan L. AdkinMark G. CarpenterNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-12 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Martin Zaback Allan L. Adkin Mark G. Carpenter Adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat
description	Abstract Height-induced postural threat influences standing balance control. However, it is unknown if minimizing individuals’ emotional response to threat moderates this relationship. This study repeatedly exposed individuals to height-induced postural threat to determine if reducing the emotional response to threat influences standing balance control. Sixty-eight young adults completed a series of standing trials at LOW (0.8 m above ground, away from edge) and HIGH (3.2 m above ground, at edge) postural threat conditions. Emotional state was assessed using self-report and electrodermal measures. Standing balance was assessed through analysis of centre of pressure (COP) movement and lower leg electromyographic activity. Individuals’ emotional response to threat was attenuated following repeated threat exposure. However, threat-induced changes in standing balance were largely preserved. When initially threatened, individuals leaned backward and demonstrated smaller amplitude and higher frequency of COP adjustments; these balance outcomes did not change following repeated threat exposure. Only high frequency COP oscillations (>1.8 Hz) and ankle muscle co-contraction showed any adaptation; regression analyses showed that these behavioural adaptations were accounted for by a combination of emotional and cognitive state changes. This suggests that some threat-induced standing balance changes are more closely linked with the emotional response to threat than others, and are therefore amendable to intervention.
format	article
author	Martin Zaback Allan L. Adkin Mark G. Carpenter
author_facet	Martin Zaback Allan L. Adkin Mark G. Carpenter
author_sort	Martin Zaback
title	Adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat
title_short	Adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat
title_full	Adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat
title_fullStr	Adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat
title_full_unstemmed	Adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat
title_sort	adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/3742988a0ad74f92b26d3f5a77aa728b
work_keys_str_mv	AT martinzaback adaptationofemotionalstateandstandingbalanceparametersfollowingrepeatedexposuretoheightinducedposturalthreat AT allanladkin adaptationofemotionalstateandstandingbalanceparametersfollowingrepeatedexposuretoheightinducedposturalthreat AT markgcarpenter adaptationofemotionalstateandstandingbalanceparametersfollowingrepeatedexposuretoheightinducedposturalthreat
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Adaptation of emotional state and standing balance parameters following repeated exposure to height-induced postural threat

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