Falls in Parkinson’s disease : evidence for altered stepping strategies on compliant surfaces

Cole, Michael H., Silburn, Peter A., Wood, Joanne M., & Kerr, Graham K. (2011) Falls in Parkinson’s disease : evidence for altered stepping strategies on compliant surfaces. Parkinsonism and Related Disorders, 17(8), pp. 610-616.

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Background: Real-world environments comprise surfaces of different textures, densities and gradients, which can threaten postural stability and increase falls risk. However, there has been limited research that has examined how walking on compliant surfaces influences gait and postural stability in older people and PD patients.

Methods: PD patients (n = 49) and age-matched controls (n = 32) were assessed using three dimensional motion analysis during self-paced walking on both firm and foam walkways. Falls were recorded prospectively over 12 months using daily falls calendars.

Results: Walking on a foam surface influenced the temporospatial characteristics for all groups, but PD fallers adopted very different joint kinematics compared with controls. PD fallers also demonstrated reduced toe clearance and had increased mediolateral head motion(relative to walking velocity) compared with control participants.

Conclusions: Postural control deficits in PD fallers may impair their capacity to attenuate surface-related perturbations and control head motion. The risk of falling for PD patients may be increased on less stable surfaces.

Impact and interest:

16 citations in Scopus
16 citations in Web of Science®
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ID Code: 47278
Item Type: Journal Article
Refereed: Yes
Keywords: Falls; Gait Adaptation; Postural Control; Motion Analysis; Surface Effects
DOI: 10.1016/j.parkreldis.2011.05.019
ISSN: 1353-8020
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OTHER MEDICAL AND HEALTH SCIENCES (119900)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Schools > School of Optometry & Vision Science
Copyright Owner: Copyright 2011 Elsevier
Copyright Statement: This is the author’s version of a work that was accepted for publication in <Parkinsonism and Related Disorders>. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Parkinsonism and Related Disorders, [VOL 17, ISSUE 8, (2011)] DOI: 10.1016/j.parkreldis.2011.05.019.
Deposited On: 28 Nov 2011 22:33
Last Modified: 29 Nov 2011 23:20

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