Journal article
Obstacle crossing in people with Parkinson’s disease: Foot clearance and spatiotemporal deficits
Human Movement Science, Vol.29(5), pp.843-852
2010
Abstract
This study investigates the effects of Parkinson’s disease (PD) on foot trajectories and spatiotemporal gait adaptations when approaching and stepping over a ground-based obstacle. Twenty people with mild-moderate PD and 20 age and sex matched controls walked 10 steps at their preferred speed along a walkway and stepped over an obstacle (height 10% of leg length × 600 mm × 10 mm). Control participants also performed trials at the same speed and step length as their matched PD participant. People with PD approached and stepped over the obstacle slower and with smaller steps, but had a similar foot clearance. Those with PD were also more likely to step on the obstacle because they did not place their foot close enough to the front of the obstacle before crossing it to accommodate for their reduced step length. During the lead limb crossing step, people with PD increased their step width, whereas controls maintained a narrow step width. These findings indicate that people with PD have difficulty lengthening their step over the obstacle rather than increasing foot height. Increasing step width is a possible compensation strategy used to overcome postural instability during obstacle crossing in those with PD.
Details
- Title
- Obstacle crossing in people with Parkinson’s disease: Foot clearance and spatiotemporal deficits
- Authors/Creators
- B. Galna (Author/Creator) - The University of MelbourneA.T. Murphy (Author/Creator) - Monash UniversityM.E. Morris (Author/Creator) - The University of Melbourne
- Publication Details
- Human Movement Science, Vol.29(5), pp.843-852
- Publisher
- Elsevier
- Identifiers
- 991005540395407891
- Copyright
- © 2009 Elsevier B.V.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.82 Gait & Posture
- 1.82.263 Gait and Balance
- Web Of Science research areas
- Neurosciences
- Psychology
- Psychology, Experimental
- Sport Sciences
- ESI research areas
- Psychiatry/Psychology