Artículos de revistas
Visual Conditions And Postural Directions Affect Postural Sway Variability In Patients With Parkinson's Disease
Registro en:
Motricidade. Edicoes Desafio Singular, v. 11, n. 1, p. 118 - 125, 2015.
1646107X
10.6063/motricidade.3441
2-s2.0-84940717684
Institución
Resumen
Postural sway variability was evaluated in Parkinson's disease (PD) patients at different stages of disease. Twenty PD patients were grouped into two groups (unilateral, 14; bilateral, 6) according to disease severity. The results showed no significant differences in postural sway variability between the groups (p > 0.05). Postural sway variability was higher in the antero-posterior direction and with the eyes closed. Significant differences between the unilateral and bilateral groups were observed in clinical tests (UP-DRS, Berg Balance Scale, and retropulsion test; p < 0.05, all). Postural sway variability was unaffected by disease severity, indicating that neurological mechanisms for postural control still function at advanced stages of disease. Postural sway instability appears to occur in the antero-posterior direction to compensate for the stooped posture. The eyes-closed condition during upright stance appears to be challenging for PD patients because of the associated sensory integration deficit. 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