Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34518
Title: Reduced step length, not step length variability is central to gait hypokinesia in people with Parkinson's disease
Authors: Mak, MK 
Keywords: Parkinson's disease
Gait
Dual tasks
Step length
Variability
Issue Date: 2013
Publisher: Elsevier
Source: Clinical neurology and neurosurgery, 2013, v. 115, no. 5, p. 587-590 How to cite?
Journal: Clinical neurology and neurosurgery
Abstract: Objectives:Previous studies found that people with Parkinson's disease (PD) walked at a slower speed and with significantly shorter stride length and/or increase in variability of stride length than control subjects. The present study aimed to examine whether difference existed in amplitude and variability of step length between control and PD subjects if they walked at a similar speed.
Methods:This was a cross-sectional study. Thirteen PD patients and 15 healthy control subjects were instructed to walk at a similar speed on a treadmill under 2 randomized conditions: walking alone (Walko) and walking with digit subtraction of 3 (Walkcalculation). Amplitude of step length (cm), variability of step length (%), and percent accuracy of the calculation task (%) were recorded and analysed.
Results:During both Walko and Walkcalculation, PD patients had significantly shorter step length and larger step length variability than control subjects (p < 0.05). When a cognitive task was added to walking, PD patients showed a significant decrease in step length without further change in step length variability (p < 0.05).
Conclusion:As reduced step length persisted when the control subjects walked at a speed similar to that of patients, our finding suggests that PD patients had a fundamental problem in regulating the amplitude of step length during walking.
URI: http://hdl.handle.net/10397/34518
ISSN: 0303-8467
DOI: 10.1016/j.clineuro.2012.07.014
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

6
Last Week
0
Last month
Citations as of Jan 22, 2017

WEB OF SCIENCETM
Citations

5
Last Week
0
Last month
Citations as of Jan 18, 2017

Page view(s)

11
Last Week
0
Last month
Checked on Jan 15, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.