The effect of cognitive task on postural stability in cervical dystonia

Demır, Turgay; Balal, Mehmet; Demirkıran, Meltem

doi:10.1590/0004-282x20200038

Cited by 6 publications

(9 citation statements)

References 36 publications

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“…In idiopathic dystonia, difficulties in performing DT were firstly observed by Jahanshahi et al ( 2003 ) where patients showed a decrement of tapping task during a concurrent task performed with the other hand. Two recent studies (Demir et al 2020 ; Baione et al 2021 ) also reported cognitive DT interference in CD subjects, showing a decrement of postural control during the concomitant execution of an attention-demanding tasks. In line with these results, here we found that the ability to walk while carrying out another task is impaired in CD subjects, suggesting that there are fewer attentional resources available for simultaneous performance of secondary tasks.…”

Section: Discussionmentioning

confidence: 92%

“…Conversely, only two studies investigated cognitive-motor interference in CD patients (Demir et al 2020 ; Baione et al 2021 ). As an example, Baione et al ( 2021 ), based on the hypothesis that balance disturbances in CD may be associated with a reduction of the attentional resources available for simultaneous performance of secondary tasks, investigated whether postural control would be worsened by a concomitant execution of attention-demanding cognitive task.…”

Section: Introductionmentioning

confidence: 99%

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Dual task gait deteriorates gait performance in cervical dystonia patients: a pilot study

et al. 2021

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Day-to-day walking-related activities frequently involve the simultaneous performance of two or more tasks (i.e., dual task). Dual task ability is influenced by higher order cognitive and cortical control mechanisms. Recently, it has been shown that the concomitant execution of an attention-demanding task affected postural control in subject with cervical dystonia (CD). However, no study has investigated whether dual tasking might deteriorate gait performance in CD patients. To investigate whether adding a concomitant motor and cognitive tasks could affect walking performance in CD subjects.17 CD patients and 19 healthy subjects (HS) participated in this pilot case–control study. Gait performance was evaluated during four walking tasks: usual, fast, cognitive dual task and obstacle negotiation. Spatiotemporal parameters, dual-task cost and coefficients of variability (CV%) were measured by GaitRite® and were used to detect differences between groups. Balance performance was also assessed with Mini-BEST and Four Step Square tests. In CD participants, correlation analysis was computed between gait parameters and clinical data. Significant differences in complex gait and balance performance were found between groups. CD patients showed lower speed, longer stance time and higher CV% and dual-task cost compared to HS. In CD, altered gait parameters correlated with balance performance and were not associated with clinical features of CD. Our findings suggest that complex walking performance is impaired in patients with CD and that balance and gait deficits might be related

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Section: Discussionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Dual task gait deteriorates gait performance in cervical dystonia patients: a pilot study

et al. 2021

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“…Total sway path, lateral sway, anteriorposterior (A-P) sway, sway area, and the velocity of all sway values (sway path/time, lateral sway/ time, A-P sway/time, sway area/time) were recorded. Definitions of SPG parameters are described in detail in a previous study 15 .…”

Section: Static Posturographymentioning

confidence: 99%

Postural stability in early Parkinson’s disease: effect of cognitive dual-tasking

ERDEM

Balal

Demirkıran

2022

Cukurova Medical Journal

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Purpose: The primary aim of this study is to evaluate postural stability by using a static posturography in patients with early Parkinson’s disease (PD). Secondly, this paper addresses the need for illustrating the effect of dual-tasking on postural stability in early PD patients. Materials and Methods: Twenty-nine early PD patients with maximum 5 years of disease duration were included in this study. The selected group had no clinical PI while their age- and sex-matched healthy controls were carried out. Neurological examination and mini-mental state examination (MMSE) were performed in all subjects. Unified Parkinson Disease Rating Scale (UPDRS) and modified Hoehn and Yahr (H&Y) scores were recorded in PD patients. Postural stability was assessed in all subjects on a static posturography platform under three different conditions: eyes open, eyes closed and a cognitive task of producing words with given letters. Results: The mean age of the PD was 59.2±10.5 whereas the control groups mean age was 56.3±7.6 (p>0.05). The female-male ratio was 9/20 in the PD and 12/17 in the control group. There was no important difference between the two groups in terms of demographic characteristics. In the PD group, the mean UPDRS was 12.8±4.9. The patients were mostly receiving polytherapy. Eye closure and cognitive task caused an increase in most sway parameters in both groups. Conclusion: Early PD patients on medication, postural stability is preserved and cognitive dual-tasking does not affect postural stability in these patients in the early stage.

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“…Furthermore, several studies assessed clinical alterations in subjects with idiopathic dystonia. Subtle alterations were found with saccadic adaptation, posture, and gait in subjects with dystonia [ 112 , 113 , 114 , 115 , 116 ]. Findings of these studies point to subtle cerebellar alterations in dystonia.…”

Section: Current Understanding Of Dystonia Pathophysiologymentioning

confidence: 99%

Olfaction as a Marker for Dystonia: Background, Current State and Directions

et al. 2020

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Dystonia is a heterogeneous group of hyperkinetic movement disorders. The unifying descriptor of dystonia is the motor manifestation, characterized by continuous or intermittent contractions of muscles that cause abnormal movements and postures. Additionally, there are psychiatric, cognitive, and sensory alterations that are possible or putative non-motor manifestations of dystonia. The pathophysiology of dystonia is incompletely understood. A better understanding of dystonia pathophysiology is highly relevant in the amelioration of significant disability associated with motor and non-motor manifestations of dystonia. Recently, diminished olfaction was found to be a potential non-motor manifestation that may worsen the situation of subjects with dystonia. Yet, this finding may also shed light into dystonia pathophysiology and yield novel treatment options. This article aims to provide background information on dystonia and the current understanding of its pathophysiology, including the key structures involved, namely, the basal ganglia, cerebellum, and sensorimotor cortex. Additionally, involvement of these structures in the chemical senses are reviewed to provide an overview on how olfactory (and gustatory) deficits may occur in dystonia. Finally, we describe the present findings on altered chemical senses in dystonia and discuss directions of research on olfactory dysfunction as a marker in dystonia.

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The effect of cognitive task on postural stability in cervical dystonia

Cited by 6 publications

References 36 publications

Dual task gait deteriorates gait performance in cervical dystonia patients: a pilot study

Dual task gait deteriorates gait performance in cervical dystonia patients: a pilot study

Postural stability in early Parkinson’s disease: effect of cognitive dual-tasking

Olfaction as a Marker for Dystonia: Background, Current State and Directions

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