Reducing postural sway by concurrently performing challenging cognitive tasks

Human Movement Science
Nadia Polskaia, Yves Lajoie

Abstract

The present experiment varied cognitive complexity and sensory modality on postural control in young adults. Seventeen participants (23.71±1.99years) were instructed to stand feet together on a force platform while concurrently performing cognitive tasks of varying degrees of difficulty (easy, moderate and difficult). The cognitive tasks were presented both, auditorily and visually. Auditory tasks consisted of counting the occurrence of one or two letters and repeating a string of words. Visual tasks consisted of counting the occurrence of one or two numbers. With increasing cognitive demand, area of 95% confidence ellipse and ML sway variability was significantly reduced. The visual tasks reduced ML sway variability, whereas the auditory tasks increased COP irregularity. We suggest that these findings are primarily due to an increase in sensorimotor integration as a result of a shift in attentional focus.

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Citations

Nov 21, 2019·Experimental Aging Research·Natalie Richer, Yves Lajoie
Nov 11, 2018·Aging Clinical and Experimental Research·Natalie Richer, Yves Lajoie
Nov 11, 2020·Scientific Reports·Dorota BorzuckaMichał Kuczyński
Nov 18, 2020·Perceptual and Motor Skills·Kell Grandjean da CostaNathan Ward
Mar 23, 2021·Journal of Vestibular Research : Equilibrium & Orientation·Anat V LubetzkyTal Krasovsky

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