Imposed faster and slower walking speeds influence gait stability differently in Parkinson fallers

Cole, Michael H., Sweeney, Matthew, Conway, Zachary J., Blackmore, Tim and Silburn, Peter A. (2016) Imposed faster and slower walking speeds influence gait stability differently in Parkinson fallers. Archives of Physical Medicine and Rehabilitation, 98 4: 639-648. doi:10.1016/j.apmr.2016.11.008

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads

Author Cole, Michael H.
Sweeney, Matthew
Conway, Zachary J.
Blackmore, Tim
Silburn, Peter A.
Title Imposed faster and slower walking speeds influence gait stability differently in Parkinson fallers
Journal name Archives of Physical Medicine and Rehabilitation   Check publisher's open access policy
ISSN 1532-821X
Publication date 2016-12-16
Sub-type Article (original research)
DOI 10.1016/j.apmr.2016.11.008
Open Access Status File (Author Post-print)
Volume 98
Issue 4
Start page 639
End page 648
Total pages 10
Place of publication Maryland Heights, MO, United States
Publisher W.B. Saunders
Language eng
Formatted abstract
Objective: To evaluate the effect of imposed faster and slower walking speeds on postural stability in people with Parkinson disease (PD).

Design: Cross-sectional cohort study.

Setting: General community.

Participants: Patients with PD (n=84; 51 with a falls history; 33 without) and age-matched controls (n=82) were invited to participate via neurology clinics and preexisting databases. Of those contacted, 99 did not respond (PD=36; controls=63) and 27 were not interested (PD=18; controls=9). After screening, a further 10 patients were excluded; 5 had deep brain stimulation surgery and 5 could not accommodate to the treadmill. The remaining patients (N=30) completed all assessments and were subdivided into PD fallers (n=10), PD nonfallers (n=10), and age-matched controls (n=10) based on falls history.

Interventions: Not applicable.

Main Outcome Measures: Three-dimensional accelerometers assessed head and trunk accelerations and allowed calculation of harmonic ratios and root mean square (RMS) accelerations to assess segment control and movement amplitude.

Results: Symptom severity, balance confidence, and medical history were established before participants walked on a treadmill at 70%, 100%, and 130% of their preferred speed. Head and trunk control was lower for PD fallers than PD nonfallers and older adults. Significant interactions indicated head and trunk control increased with speed for PD nonfallers and older adults, but did not improve at faster speeds for PD fallers. Vertical head and trunk accelerations increased with walking speed for PD nonfallers and older adults, while the PD fallers demonstrated greater anteroposterior RMS accelerations compared with both other groups.

Conclusions: The results suggest that improved gait dynamics do not necessarily represent improved walking stability, and this must be respected when rehabilitating gait in patients with PD.
Keyword Accidental falls
Parkinson disease
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Queensland Brain Institute Publications
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 1 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 01 Mar 2017, 13:13:37 EST by Kirstie Asmussen on behalf of Learning and Research Services (UQ Library)