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The effects of concurrent cognitive tasks on postural sway in healthy subjects

Keeping balance of the upright stance is a highly practiced daily task for healthy adults and is effectively performed without overt attentional control in most. The purpose of this study was to examine the influence of concurrent cognitive tasks on postural sway in healthy participants. This was a...

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Bibliographic Details
Published in:Brazilian journal of otorhinolaryngology 2016-01, Vol.82 (1), p.3-10
Main Authors: Mujdeci, Banu, Turkyilmaz, Didem, Yagcioglu, Suha, Aksoy, Songul
Format: Article
Language:English
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Summary:Keeping balance of the upright stance is a highly practiced daily task for healthy adults and is effectively performed without overt attentional control in most. The purpose of this study was to examine the influence of concurrent cognitive tasks on postural sway in healthy participants. This was a prospective study. 20 healthy volunteer subjects were included. The cognitive and balance tasks were performed separately and then, concurrently. Postural control task consisted of 6 conditions (C) of the Sensory Organization Test. The cognitive task consisted of digit rehearsal task of varying presentation and varying levels of difficulty. A statistically significant difference was noted between dual task and no task for C1, C2, C3 and C4 Sensory Organization Test scores (p0.05). During dual task, increase has been determined in postural sway for C1, C2, C3 and C4 for all presentation modes and difficulty levels of the cognitive tasks. Manter o equilíbrio na postura vertical é uma tarefa cotidiana constantemente praticada por adultos saudáveis, e é efetivamente realizada pela maioria sem a necessidade de um controle atencional. A finalidade deste estudo foi examinar a influência de tarefas cognitivas concomitantes no equilíbrio postural de indivíduos saudáveis. Trata-se de um estudo prospectivo em que participaram 20 voluntários saudáveis. As tarefas cognitivas e de equilíbrio foram realizadas separadamente; e em seguida, realizadas simultaneamente. A tarefa de controle postural consistiu em seis condições (C) do Teste de Organização Sensorial (TOS). A tarefa cognitiva consistiu na repetição de dígitos com apresentações variadas e vários níveis de dificuldade. Houve diferença estatisticamente significante entre os escores do TOS para as condições C1, C2, C3 e C4 para “dupla tarefa” vs. “não tarefa” (p0,05). Durante a realização de dupla tarefa, foram determinados aumentos na oscilação postural para as condições C1, C2, C3 e C4 para todos os modos de apresentação e níveis de dificuldade das tarefas cognitivas.
ISSN:1808-8694
1808-8686
1808-8686
DOI:10.1016/j.bjorl.2015.10.011