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'Postural first' principle when balance is challenged in elderly people.

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Title: 'Postural first' principle when balance is challenged in elderly people.
Authors: Lion, Alexis (AUTHOR), Spada, Rosario S. (AUTHOR), Bosser, Gilles (AUTHOR), Gauchard, Gérome C. (AUTHOR), Anello, Guido (AUTHOR), Bosco, Paolo (AUTHOR), Calabrese, Santa (AUTHOR), Iero, Antonella (AUTHOR), Stella, Giuseppe (AUTHOR), Elia, Maurizio (AUTHOR), Perrin, Philippe P. (AUTHOR)
Source: International Journal of Neuroscience. Aug2014, Vol. 124 Issue 8, p558-566. 9p.
Subjects: Cognition, Posture disorders, Business enterprises, Gene expression, Brain physiology
Abstract: Human cognitive processing limits can lead to difficulties in performing two tasks simultaneously. This study aimed to evaluate the effect of cognitive load on both simple and complex postural tasks. Postural control was evaluated in 128 noninstitutionalized elderly people (mean age = 73.6 ± 5.6 years) using a force platform on a firm support in control condition (CC) and mental counting condition (MCC) with eyes open (EO) and eyes closed (EC). Then, the same tests were performed on a foam support. Sway path traveled and area covered by the center of foot pressure were recorded, low values indicating efficient balance. On firm support, sway path was higher in MCC than in CC both in EO and EC conditions ( p < 0.001). On foam support, sway path was higher in CC than in MCC in EC condition ( p < 0.001), area being higher in CC than in MCC both in EO ( p < 0.05) and EC (p < 0.001) conditions. The results indicate that cognitive load alters balance control in a simple postural task (i.e. on firm support), which is highlighted by an increase of energetic expenditure (i.e. increase of the sway path covered) to balance. Awareness may not be increased and the attentional demand may be shared between balance and mental task. Conversely, cognitive load does not perturb the realization of a new complex postural task. This result showed that postural control is prioritized ('postural first' principle) when seriously challenged. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Neuroscience is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: &#39;Postural first&#39; principle when balance is challenged in elderly people.
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22International+Journal+of+Neuroscience%22&quot;&gt;International Journal of Neuroscience&lt;/searchLink&gt;. Aug2014, Vol. 124 Issue 8, p558-566. 9p.
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  Data: Human cognitive processing limits can lead to difficulties in performing two tasks simultaneously. This study aimed to evaluate the effect of cognitive load on both simple and complex postural tasks. Postural control was evaluated in 128 noninstitutionalized elderly people (mean age = 73.6 &#177; 5.6&#160;years) using a force platform on a firm support in control condition (CC) and mental counting condition (MCC) with eyes open (EO) and eyes closed (EC). Then, the same tests were performed on a foam support. Sway path traveled and area covered by the center of foot pressure were recorded, low values indicating efficient balance. On firm support, sway path was higher in MCC than in CC both in EO and EC conditions ( p &lt; 0.001). On foam support, sway path was higher in CC than in MCC in EC condition ( p &lt; 0.001), area being higher in CC than in MCC both in EO ( p &lt; 0.05) and EC (p &lt; 0.001) conditions. The results indicate that cognitive load alters balance control in a simple postural task (i.e. on firm support), which is highlighted by an increase of energetic expenditure (i.e. increase of the sway path covered) to balance. Awareness may not be increased and the attentional demand may be shared between balance and mental task. Conversely, cognitive load does not perturb the realization of a new complex postural task. This result showed that postural control is prioritized (&#39;postural first&#39; principle) when seriously challenged. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of International Journal of Neuroscience is the property of Taylor &amp; Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.3109/00207454.2013.864288
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        Text: English
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        Type: general
      – SubjectFull: Posture disorders
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      – SubjectFull: Business enterprises
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              Text: Aug2014
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