Influence of dual-task on sit-to-stand-to-sit postural control in Parkinson’s disease

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Ângela Fernandes (Author) FEUP; Andreia S. P. Sousa (Author) Other; Joana Couras (Author) Other; Nuno Rocha (Author) Other; João Manuel R. S. Tavares (Author) FEUP

Journal

Title: Medical Engineering & Physics

Vol. 37 No. 11

Pages: 1070-1075

ISSN: 1350-4533

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 16 Citations

Scopus - 18 Citations

INSPEC

Scientific classification

FOS: Engineering and technology

CORDIS: Health sciences

Other information

Authenticus ID: P-00J-XVX

DOI: 10.1016/j.medengphy.2015.08.011

Abstract (EN): Postural control deficits are the most disabling aspects of Parkinson's disease (PD), resulting in decreased mobility and functional independence. The aim of this study was to assess the postural control stability, revealed by variables based on the centre of pressure (CoP), in individuals with PD while performing a sit-to-stand-to-sit sequence under single- and dual-task conditions. An observational, analytical and cross-sectional study was performed. The sample consisted of 9 individuals with PD and 9 healthy controls. A force platform was used to measure the CoP displacement and velocity during the sit-to-stand-to-sit sequence. The results were statistically analysed. Individuals with PD required greater durations for the sit-to-stand-to-sit sequence than the controls (p < 0.05). The anteroposterior and mediolateral CoP displacement were higher in the individuals with PD (p < 0.05). However, only the anteroposterior CoP velocity in the stand-to-sit phase (p = 0.006) was lower in the same individuals. Comparing the single- and dual-task conditions in both groups, the duration, the anteroposterior CoP displacement and velocity were higher in the dual-task condition (p < 0.05). The individuals with PD presented reduced postural control stability during the sit-to-stand-to-sit sequence, especially when under the dual-task condition. These individuals have deficits not only in motor performance, but also in cognitive performance when performing the sit-to-stand-to-sit sequence in their daily life tasks. Moreover, both deficits tend to be intensified when two tasks are performed simultaneously.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6