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Article type: Research Article
Authors: Gallo, Paul M.; | McIsaac, Tara L.; | Garber, Carol Ewing
Affiliations: Teacher's College, Columbia University, NY, USA | Norwalk Community College, Norwalk, Connecticut | Arizona School of Health, Science, A.T. Still University, Mesa, Arizona
Note: [] Correspondence to: Paul M. Gallo, Norwalk Community College, 188 Richards Avenue, Norwalk, Connecticut 06854, Tel.: +203 857 7194; Fax: +203 857 7098; E-mails: [email protected]; [email protected] (T.L. McIsaac); [email protected] (C.E. Garber).
Abstract: Background: Gait impairments related to Parkinson's disease (PD) include variable step length and decreased walking velocity, which may result in poorer walking economy. Auditory cueing is a common method used to improve gait mechanics in PD that has been shown to worsen walking economy at set treadmill walking speeds. It is unknown if auditory cueing has the same effects on walking economy at self-selected treadmill walking speeds. Objectives: To determine if auditory cueing will affect walking economy at self-selected treadmill walking speeds and at speeds slightly faster and slower than self-selected. Methods: Twenty-two participants with moderate PD performed three, 6-minute bouts of treadmill walking at three speeds (self-selected and ± 0.22 m·sec−1). One session used cueing and the other without cueing. Energy expenditure was measured and walking economy was calculated (energy expenditure/power). Results: Poorer walking economy and higher energy expenditure occurred during cued walking at a self-selected and a slightly faster walking speed, but there was no apparent difference at the slightly slower speed. Conclusion: These results suggest that potential gait benefits of auditory cueing may come at an energy cost and poorer walking economy for persons with PD at least at some treadmill walking speeds.
Keywords: Parkinson disease, walking, physical fitness, exercise, rehabilitation
DOI: 10.3233/JPD-140445
Journal: Journal of Parkinson's Disease, vol. 4, no. 4, pp. 705-716, 2014
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