NDLI: Dual tasking and balance in those with central and peripheral vision loss.

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Dual tasking and balance in those with central and peripheral vision loss.

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Dual tasking and balance in those with central and peripheral vision loss.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Chopra, Reena Rubin, Gary S. Kotecha, Aachal Fahy, Rachel T. A.
Description	Country affiliation: United kingdom Author Affiliation: Kotecha A ( National Institute for Health Research Biomedical Research Center for Ophthalmology, Moorfields Eye Hospital National Health Service Foundation Trust, London, United Kingdom.)
Abstract	PURPOSE: To investigate the effects of a secondary task on standing balance in patients with glaucoma or AMD compared with age-similar control subjects. METHODS: Twelve AMD, 12 glaucoma, and 12 control participants underwent posturography under two standing conditions (eyes open on a firm or foam-rubber surface) and two tasks: quiet standing and undertaking a mental arithmetic task. Center of foot-pressure average displacement (root mean square [RMS]; in millimeters) was calculated. RESULTS: The mean (SD) age of the participants in each group was as follows: controls 66.2 (6.4) years, glaucoma 69.2 (4.3) years, and AMD 72.2 (5.3) years. There were significant differences in RMS between controls and AMD patients when undertaking the mental arithmetic task standing on the firm surface (mean difference [SE]: 2.8 [0.8] mm, P = 0.005). There were significant differences between controls and AMD patients when undertaking the mental arithmetic task on the foam surface, with the difference between controls and glaucoma patients approaching significance (mean difference [SE]: control versus AMD = 3.1 [0.9] mm, P = 0.005; control versus glaucoma = 2.2 [0.9] mm, P = 0.06). CONCLUSIONS: Postural instability increases with the addition of a secondary task in older persons, which may put them at greater risk of falls. Patients with central losses exhibit greater instability with the addition of a secondary task, particularly during somatosensory perturbations. The negative effects of secondary tasks on balance control in those with peripheral visual losses become more apparent under somatosensory perturbations.
ISSN	01460404
e-ISSN	15525783
Journal	Investigative Opthalmology & Visual Science
Issue Number	8
Volume Number	54
Language	English
Publisher	Association for Research in Vision and Ophthalmology
Publisher Date	2013-08-09
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Gait Physiology Glaucoma Physiopathology Macular Degeneration Postural Balance Posture Psychomotor Performance Vision, Low Aging Disease Progression Complications Etiology Visual Fields Comparative Study Research Support, Non-u.s. Gov't Discipline Ophthalmology
Content Type	Text
Resource Type	Article
Subject	Ophthalmology Sensory Systems Cellular and Molecular Neuroscience

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