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http://dx.doi.org/10.12674/ptk.2012.19.3.040

The Effect of Visual Feedback on Postural Control During Sit-to-Stand Movements of Brain-Damaged Patients Under Different Support Conditions  

Shin, Jun-Beom (Dept. of Cognitive Science, The Graduate School, Pusan National University)
Lee, Jae-Sik (Dept. of Psychology, College of Social Sciences, Pusan National University)
Publication Information
Physical Therapy Korea / v.19, no.3, 2012 , pp. 40-50 More about this Journal
Abstract
The purpose of this study was to investigate the effect of visual feedback on the postural control of stroke patients, by systematically varying conditions of visual feedback [eye-open condition (EO) vs. eye-closed condition (EC)], and base-support (both-side support, affected-side support, and unaffected-side support). In this study, we allocated 41 stroke patients with no damage in the cerebellum and visual cortex who can walk at least 10 meters independently, and 35 normal adults who have no experience of stroke to the control group. Both groups were asked to perform a "sit-to-stand" task three to five times, and their postural control ability was measured and compared in terms of asymmetric dependence (AD) instead of the traditional symmetric index (SI) in the literature. The results showed that although both subject groups maintained better postural control in the EO condition than in the EC condition, the patient group appeared to be more stable in EC than in EO when they were required to perform the task of the support condition given on the affected side. These results implied that visual feedback can impair stroke patients' postural control when it is combined with a specific support condition.
Keywords
Asymmetric dependence; Postural control; Stroke; Visual feedback;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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