ISSN: 2544-4395
Physiotherapy Quarterly formerly Fizjoterapia
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2/2019
vol. 27
 
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abstract:
Original paper

The relation between cognitive impairment severity and postural stability in the elderly

Błażej Cieślik
,
Dagmara Chamela-Bilińska
,
Bożena Ostrowska
,
Joanna Szczepańska-Gieracha

Online publish date: 2019/06/06
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Introduction
The purpose of this study was to evaluate the relationship between the severity of cognitive impairment and the results of stabilographic tests in elderly patients with cognitive impairment.

Methods
The study involved 42 participants aged 62–84 (mean 73.4 ± 6.7) years. The assessment of cognitive status was carried out with the Mini-Mental State Examination (MMSE). Included were subjects who obtained a score below 27, which is the cut-off score between the absence and presence of cognitive impairment. Postural stability was evaluated by using a force platform which registered the shifts of the centre of pressure (CoP) in the sagittal and frontal plane during two 32-second trials of quiet stance on a hard surface, with eyes open and with eyes closed. The CoP sway parameters were analysed.

Results
In the eyes-open test, we obtained a weak negative correlation of the MMSE and the mean radius of the CoP sway (r = –0.37; p < 0.05). Considering the values achieved in each plane, a statistically significant correlation was observed in all the parameters analysed in the sagittal plane. The eyes-closed test revealed a clear negative correlation between the MMSE results and all the studied parameters.

Conclusions
A significant relationship between the severity of cognitive impairment and the results of stabilographic parameters were noted. A negative correlation between the stabilographic parameters and the MMSE scores showed a linear deterioration of postural stability which progresses along with the decrease in cognitive functions.

keywords:

dementia, centre of pressure, postural stability, balance, cognitive impairment

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