Cardiovascular and cerebral haemodynamic responses to ego depletion in a pressurized sporting task

O'Brien, Jessica, Fryer, Simon M, Parker, John K and Moore, Lee J (2019) Cardiovascular and cerebral haemodynamic responses to ego depletion in a pressurized sporting task. Sport, Exercise, and Performance Psychology. ISSN 2157-3905 (In Press)

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Abstract

This study examined the effects of ego depletion on challenge and threat states and cerebral haemodynamic responses to a pressurized muscular endurance task requiring self-control. Following ethical approval, 58 participants (39 males, 19 females; Mage = 28 years, SD = 12) were randomly assigned to either an experimental or control group. Participants then completed self-report measures of trait anxiety and self-control. Next, the experimental group performed a written transcription task requiring self-control, while the control group transcribed the text normally. Finally, before the pressurized muscular endurance task, challenge and threat states were assessed using demand and resource evaluations and cardiovascular reactivity; while cerebral perfusion in Fp1 and Fp2 was assessed using near-infrared spectroscopy. The results supported the effectiveness of the self-control manipulation, with the experimental group transcribing fewer words, making more errors, and regulating their writing habits more than the control group. Although there were no differences between the groups in terms of muscular endurance performance or challenge and threat states, there was a significant interaction of time (pre vs. post) x group (experimental vs. control) in cerebral perfusion. These findings suggest that ego depletion might not influence challenge and threat states, but may lead to reduced cerebral perfusion. As such, cerebral perfusion may be a novel marker which could be used to assess ego depletion.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Self-control; Stress; Cognitive appraisal; Cerebral perfusion; Challenge and threat states; Self-regulation
Subjects: Q Science > QP Physiology > QP301.H75 Physiology. Sport
R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Schools and Research Institutes > School of Sport and Exercise > Applied Sport & Exercise Sciences
Research Priority Areas: Sport, Exercise, Health & Wellbeing
Depositing User: Marta Kemp
Date Deposited: 22 Nov 2019 10:56
Last Modified: 22 Nov 2019 11:00
URI: http://eprints.glos.ac.uk/id/eprint/7635

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