Falls in Parkinson's disease: Evidence for altered stepping strategies on compliant surfaces

Cole, Michael H., Silburn, Peter A., Wood, Joanne M. and Kerr, Graham K. (2011) Falls in Parkinson's disease: Evidence for altered stepping strategies on compliant surfaces. Parkinsonism and Related Disorders, 17 8: 610-616. doi:10.1016/j.parkreldis.2011.05.019


Author Cole, Michael H.
Silburn, Peter A.
Wood, Joanne M.
Kerr, Graham K.
Title Falls in Parkinson's disease: Evidence for altered stepping strategies on compliant surfaces
Journal name Parkinsonism and Related Disorders   Check publisher's open access policy
ISSN 1353-8020
1873-5126
Publication date 2011-09
Sub-type Article (original research)
DOI 10.1016/j.parkreldis.2011.05.019
Volume 17
Issue 8
Start page 610
End page 616
Total pages 7
Place of publication Oxford, United Kingdom
Publisher Elsevier
Collection year 2012
Language eng
Formatted abstract
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. 
Keyword Falls
Gait adaptation
Postural control
Motion analysis
Surface effects
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: UQ Centre for Clinical Research Publications
Official 2012 Collection
 
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