Dual-Task Performance: Influence of Frailty, Level of Physical Activity, and Cognition.

Autor:	Giusti Rossi P; Department of Physiotherapy, Federal University of São Carlos, São Carlos, São Paulo, Brazil., Pires de Andrade L; Department of Physiotherapy, Federal University of São Carlos, São Carlos, São Paulo, Brazil., Hotta Ansai J; Department of Physiotherapy, Federal University of São Carlos, São Carlos, São Paulo, Brazil., Silva Farche AC; Department of Physiotherapy, Federal University of São Carlos, São Carlos, São Paulo, Brazil., Carnaz L; Center of Biological Sciences and Health, Sagrado Coração University, Bauru, São Paulo, Brazil., Dalpubel D; Department of Nursing, Federal University of São Carlos, São Carlos, São Paulo, Brazil., Ferriolli E; Department of Clinical Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil., Assis Carvalho Vale F; Department of Medicine, Federal University of São Carlos, São Carlos, São Paulo, Brazil., de Medeiros Takahashi AC; Department of Physiotherapy, Federal University of São Carlos, São Carlos, São Paulo, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of geriatric physical therapy (2001) [J Geriatr Phys Ther] 2019 Jul/Sep; Vol. 42 (3), pp. E142-E147.
DOI:	10.1519/JPT.0000000000000182
Abstrakt:	Background and Purpose: Cognition and level of physical activity have been associated with frailty syndrome. The development of tools that assess deficits related to physical and cognitive frailties simultaneously are of common interest. However, little is known about how much these aspects influence the performance of dual-task tests. Our aims were (a) to verify the influence of frailty syndrome and objectively measured physical activity and cognition on the Timed Up and Go (TUG) test and Timed Up and Go associated with dual-task (TUG-DT) performances; and (b) to compare TUG and TUG-DT performances between older adults who develop frailty syndrome. Methods: Sixty-four community-dwelling older adults were divided into frail, prefrail, and nonfrail groups, according to frailty phenotype. Assessments included anamnesis, screening of frailty syndrome, cognitive assessment (Addenbrooke's Cognitive Examination), placement of a triaxial accelerometer to assess level of physical activity, and TUG and TUG-DT (TUG associated with a motor-cognitive task of calling a phone number) performances. After 7 days, the accelerometer was removed. A multiple linear regression was applied to identify which independent variables could explain performances in the TUG and TUG-DT. Subsequently, the analysis of covariance test, adjusted for age, cognition, and level of physical activity covariates, was used to compare test performances. Results: There were no differences in cognition between groups. Significant differences in the level of physical activity were found in the frail group. Compared with the frail group, the nonfrail group required less time and fewer steps to complete the TUG. Regarding the TUG-DT, cognition and age influenced the time spent and number of steps, respectively; however, no differences were found between groups. Conclusions: Frail older adults presented worse performance in the TUG when compared with nonfrail older adults. The dual-task test does not differentiate older adults with frailty syndrome, regardless of cognitive performance.
Databáze:	MEDLINE
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