Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease
Although dual-task interference has previously been demonstrated to have a significant effect on postural control among individuals with Parkinson's disease, the impact of speech complexity on postural control has not been demonstrated using quantitative biomechanical measures. The postural sta...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Parkinson's Disease |
| Online Access: | http://dx.doi.org/10.4061/2010/696492 |
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| author | J. D. Holmes M. E. Jenkins A. M. Johnson S. G. Adams S. J. Spaulding |
| author_facet | J. D. Holmes M. E. Jenkins A. M. Johnson S. G. Adams S. J. Spaulding |
| author_sort | J. D. Holmes |
| collection | DOAJ |
| description | Although dual-task interference has previously been demonstrated to have a significant effect on postural control among individuals with Parkinson's disease, the impact of speech complexity on postural control has not been demonstrated using quantitative biomechanical measures. The postural stability of twelve participants with idiopathic Parkinson's disease and twelve healthy age-matched controls was evaluated under three conditions: (1) without a secondary task, (2) performing a rote repetition task and (3) generating a monologue. Results suggested a significant effect of cognitive load on biomechanical parameters of postural stability. Although both groups increased their postural excursion, individuals with Parkinson's disease demonstrated significantly reduced excursion as compared with that of healthy age-matched controls. This suggests that participants with Parkinson's disease may be overconstraining their postural adjustments in order to focus attention on the cognitive tasks without losing their balance. Ironically, this overconstraint may place the participant at greater risk for a fall. |
| format | Article |
| id | doaj-art-4e9dea68acec47f6b4a9578a24fa1cd4 |
| institution | Kabale University |
| issn | 2042-0080 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Parkinson's Disease |
| spelling | doaj-art-4e9dea68acec47f6b4a9578a24fa1cd42025-08-20T03:36:40ZengWileyParkinson's Disease2042-00802010-01-01201010.4061/2010/696492696492Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's DiseaseJ. D. Holmes0M. E. Jenkins1A. M. Johnson2S. G. Adams3S. J. Spaulding4School of Occupational Therapy, The University of Western Ontario, London, ON, N6G 1H1, CanadaDepartment of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON, N6A 5A5, CanadaSchool of Health Studies, The University of Western Ontario, London, ON, N6A 5B9, CanadaSchool of Communication Sciences and Disorders, The University of Western Ontario, London, ON, N6G 1H1, CanadaSchool of Occupational Therapy, The University of Western Ontario, London, ON, N6G 1H1, CanadaAlthough dual-task interference has previously been demonstrated to have a significant effect on postural control among individuals with Parkinson's disease, the impact of speech complexity on postural control has not been demonstrated using quantitative biomechanical measures. The postural stability of twelve participants with idiopathic Parkinson's disease and twelve healthy age-matched controls was evaluated under three conditions: (1) without a secondary task, (2) performing a rote repetition task and (3) generating a monologue. Results suggested a significant effect of cognitive load on biomechanical parameters of postural stability. Although both groups increased their postural excursion, individuals with Parkinson's disease demonstrated significantly reduced excursion as compared with that of healthy age-matched controls. This suggests that participants with Parkinson's disease may be overconstraining their postural adjustments in order to focus attention on the cognitive tasks without losing their balance. Ironically, this overconstraint may place the participant at greater risk for a fall.http://dx.doi.org/10.4061/2010/696492 |
| spellingShingle | J. D. Holmes M. E. Jenkins A. M. Johnson S. G. Adams S. J. Spaulding Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease Parkinson's Disease |
| title | Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease |
| title_full | Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease |
| title_fullStr | Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease |
| title_full_unstemmed | Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease |
| title_short | Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease |
| title_sort | dual task interference the effects of verbal cognitive tasks on upright postural stability in parkinson s disease |
| url | http://dx.doi.org/10.4061/2010/696492 |
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