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Volume 2012 (2012), Article ID 671261, 9 pages
The Effects of Instructions on Dual-Task Walking and Cognitive Task Performance in People with Parkinson's Disease
Department of Rehabilitation Medicine, University of Washington, 1959 NE Pacific Street, P.O. Box 356490, Seattle, WA 98125, USA
Received 8 September 2012; Revised 18 November 2012; Accepted 26 November 2012
Academic Editor: Margaret K. Y. Mak
Copyright © 2012 Valerie E. Kelly et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
- C. L. Wielinski, C. Erickson-Davis, R. Wichmann, M. Walde-Douglas, and S. A. Parashos, “Falls and injuries resulting from falls among patients with Parkinson's disease and other Parkinsonian syndromes,” Movement Disorders, vol. 20, no. 4, pp. 410–415, 2005.
- D. Muslimović, B. Post, J. D. Speelman, B. Schmand, and R. J. De Haan, “Determinants of disability and quality of life in mild to moderate Parkinson disease,” Neurology, vol. 70, no. 23, pp. 2241–2247, 2008.
- B. Post, M. P. Merkus, R. J. De Haan, and J. D. Speelman, “Prognostic factors for the progression of Parkinson's disease: a systematic review,” Movement Disorders, vol. 22, no. 13, pp. 1839–1851, 2007.
- P. Gray and K. Hildebrand, “Fall risk factors in Parkinson's disease.,” The Journal of Neuroscience Nursing, vol. 32, no. 4, pp. 222–228, 2000.
- S. O'Shea, M. E. Morris, and R. Iansek, “Dual task interference during gait in people with Parkinson disease: effects of motor versus cognitive secondary tasks,” Physical Therapy, vol. 82, no. 9, pp. 888–897, 2002.
- J. M. Bond and M. Morn's, “Goal-directed secondary motor tasks: their effects on gait in subjects with Parkinson disease,” Archives of Physical Medicine and Rehabilitation, vol. 81, no. 1, pp. 110–116, 2000.
- R. Galletly and S. G. Brauer, “Does the type of concurrent task affect preferred and cued gait in people with Parkinson's disease?” Australian Journal of Physiotherapy, vol. 51, no. 3, pp. 175–180, 2005.
- L. Rochester, V. Hetherington, D. Jones et al., “Attending to the task: interference effects of functional tasks on walking in Parkinson's disease and the roles of cognition, depression, fatigue, and balance,” Archives of Physical Medicine and Rehabilitation, vol. 85, no. 10, pp. 1578–1585, 2004.
- G. Yogev, N. Giladi, C. Peretz, S. Springer, E. S. Simon, and J. M. Hausdorff, “Dual tasking, gait rhythmicity, and Parkinson's disease: which aspects of gait are attention demanding?” European Journal of Neuroscience, vol. 22, no. 5, pp. 1248–1256, 2005.
- D. Jones, L. Rochester, A. Birleson et al., “Everyday walking with Parkinson's disease: understanding personal challenges and strategies,” Disability and Rehabilitation, vol. 30, no. 16, pp. 1213–1221, 2008.
- J. Parkinson, “An essay on the shaking palsy,” in James Parkinson, 1755–1824, C. Gardner-Thorpe, Ed., Exeter, London, UK, 1988.
- A. L. Behrman, P. Teitelbaum, and J. H. Cauraugh, “Verbal instructional sets to normalise the temporal and spatial gait variables in Parkinson's disease,” Journal of Neurology Neurosurgery and Psychiatry, vol. 65, no. 4, pp. 580–582, 1998.
- C. G. Canning, “The effect of directing attention during walking under dual-task conditions in Parkinson's disease,” Parkinsonism and Related Disorders, vol. 11, no. 2, pp. 95–99, 2005.
- M. E. Morris, R. Iansek, T. A. Matyas, and J. J. Summers, “Stride length regulation in Parkinson's disease: normalization strategies and underlying mechanisms,” Brain, vol. 119, no. 2, pp. 551–568, 1996.
- C. A. Lohnes and G. M. Earhart, “The impact of attentional, auditory, and combined cues on walking during single and cognitive dual tasks in Parkinson disease,” Gait and Posture, vol. 33, no. 3, pp. 478–483, 2011.
- V. E. Kelly, A. J. Eusterbrock, and A. Shumway-Cook, “A review of dual-task walking deficits in people with Parkinson's disease: motor and cognitive contributions, mechanisms, and clinical implications,” Parkinsons Disease, vol. 2012, Article ID 918719, 2012.
- B. R. Bloem, Y. A. M. Grimbergen, J. G. van Dijk, and M. Munneke, “The “posture second” strategy: a review of wrong priorities in Parkinson's disease,” Journal of the Neurological Sciences, vol. 248, no. 1-2, pp. 196–204, 2006.
- J. C. Dalrymple-Alford, M. R. MacAskill, C. T. Nakas et al., “The MoCA: well-suited screen for cognitive impairment in Parkinson disease,” Neurology, vol. 75, no. 19, pp. 1717–1725, 2010.
- K. C. Siu, L. S. Chou, U. Mayr, P. Van Donkelaar, and M. H. Woollacott, “Does inability to allocate attention contribute to balance constraints during gait in older adults?” Journals of Gerontology A, vol. 63, no. 12, pp. 1364–1369, 2008.
- V. E. Kelly, A. A. Janke, and A. Shumway-Cook, “Effects of instructed focus and task difficulty on concurrent walking and cognitive task performance in healthy young adults,” Experimental Brain Research, vol. 207, no. 1-2, pp. 65–73, 2010.
- J. S. Brach, J. E. Berlin, J. M. VanSwearingen, A. B. Newman, and S. A. Studenski, “Too much or too little step width variability is associated with a fall history in older persons who walk at or near normal gait speed,” Journal of NeuroEngineering and Rehabilitation, vol. 2, article 21, 2005.
- S. Lord, K. Baker, A. Nieuwboer, D. Burn, and L. Rochester, “Gait variability in Parkinson's disease: an indicator of non-dopaminergic contributors to gait dysfunction?” Journal of Neurology, vol. 258, no. 4, pp. 566–572, 2011.
- C. J. Chen and L. S. Chou, “Center of mass position relative to the ankle during walking: a clinically feasible detection method for gait imbalance,” Gait and Posture, vol. 31, no. 3, pp. 391–393, 2010.
- A. Sawers and M. E. Hahn, “Regulation of whole-body frontal plane balance varies within a step during unperturbed walking,” Gait and Posture, vol. 36, no. 2, pp. 322–324, 2012.
- V. E. Kelly, A. J. Eusterbrock, and A. Shumway-Cook, “Factors influencing dynamic prioritization during dual-task walking in healthy young adults,” Gait and Posture, vol. 37, no. 1, pp. 131–134, 2013.
- G. Yogev-Seligmann, Y. Rotem-Galili, A. Mirelman, R. Dickstein, N. Giladi, and J. M. Hausdorff, “How does explicit prioritization alter walking during dual-task performance? Effects of age and sex on gait speed and variability,” Physical Therapy, vol. 90, no. 2, pp. 177–186, 2010.
- K. C. Siu and M. H. Woollacott, “Attentional demands of postural control: the ability to selectively allocate information-processing resources,” Gait and Posture, vol. 25, no. 1, pp. 121–126, 2007.
- J. T. E. Richardson, “Eta squared and partial eta squared as measures of effect size in educational research,” Educational Research Review, vol. 6, no. 2, pp. 135–147, 2011.
- J. Cohen, Statistical Power Analysis for the Behavioural Sciences, Academic Press, New York, NY, USA, 1988.
- C. L. Tomlinson, R. Stowe, S. Patel, C. Rick, R. Gray, and C. E. Clarke, “Systematic review of levodopa dose equivalency reporting in Parkinson's disease,” Movement Disorders, vol. 25, no. 15, pp. 2649–2653, 2010.
- G. Yogev-Seligmann, J. M. Hausdorff, and N. Giladi, “Do we always prioritize balance when walking? Towards an integrated model of task prioritization,” Movement Disorders, vol. 27, no. 6, pp. 765–770, 2012.
- G. Yogev-Seligmann, Y. Rotem-Galili, R. Dickstein, et al., “Effects of explicit prioritization on dual task walking in patients with Parkinson's disease,” Gait and Posture, vol. 35, no. 4, pp. 641–646, 2012.
- B. R. Bloem, V. V. Valkenburg, M. Slabbekoorn, and J. G. Van Dijk, “The multiple tasks test. Strategies in Parkinson's disease,” Experimental Brain Research, vol. 137, no. 3-4, pp. 478–486, 2001.
- J. H. Hollman, K. B. Childs, M. L. McNeil, A. C. Mueller, C. M. Quilter, and J. W. Youdas, “Number of strides required for reliable measurements of pace, rhythm and variability parameters of gait during normal and dual task walking in older individuals,” Gait and Posture, vol. 32, no. 1, pp. 23–28, 2010.
- S. Lord, T. Howe, J. Greenland, et al., “Gait variability in older adults: a structured review of testing protocol and clinimetric properties,” Gait and Posture, vol. 34, no. 4, pp. 443–450, 2011.
- B. Galna, S. Lord, and L. Rochester, “Is gait variability reliable in older adults and Parkinson's disease? Towards an optimal testing protocol,” Gait and Posture. In press.