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Balance control is impaired by mental fatigue due to the fulfilment of a continuous cognitive task or by the watching of a documentary

Hachard, Betty and Noé, Frédéric and Ceyte, Hadrien and Trajin, Baptiste and Paillard, Thierry Balance control is impaired by mental fatigue due to the fulfilment of a continuous cognitive task or by the watching of a documentary. (2020) Experimental Brain Research, 238 (4). 861-868. ISSN 0014-4819

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Official URL: https://doi.org/10.1007/s00221-020-05758-2

Abstract

The aim of the present study was to evaluate the effects of mental fatigue (MF) induced by a 90-min continuous demanding cognitive task on balance control. Twenty healthy young participants were recruited. They had to perform three postural tasks (on a stable support with eyes open, with eyes closed and on a wobble board) while standing on a force platform before and after watching a documentary in a control condition or carrying out a prolonged continuous demanding cognitive task (AX-continuous performance test—AX-CPT) in a MF condition. Results showed that performing the AX-CPT generated. MF since participants felt a higher subjective workload from the NASA Task Load Index after the AX-CPT than after viewing the documentary. Both the AX-CPT and the viewing of the documentary impaired balance control, mainly by affecting postural regulatory mechanisms which evolved towards a less automatic and less complex regulation mode with an increased participation of cognitive resources. MF generated by the AX-CPT affected balance control by compromising the attentional processing, while the deleterious influence of watching a documentary on postural control could stem from an adverse effect of prolonged sitting on balance control during subsequent standing.

Item Type:Article
HAL Id:hal-02651431
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université de Pau et des Pays de l'Adour - UPPA (FRANCE)
Other partners > Université de Lorraine (FRANCE)
Laboratory name:
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Deposited On:18 Apr 2020 13:04

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