Gait coordination in Parkinson disease

Effects of step length and cadence manipulations

April J. Williams, Daniel Peterson, Gammon M. Earhart

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Background: Gait impairments are well documented in those with PD. Prior studies suggest that gait impairments may be worse and ongoing in those with PD who demonstrate FOG compared to those with PD who do not. Purpose: Our aim was to determine the effects of manipulating step length and cadence individually, and together, on gait coordination in those with PD who experience FOG, those with PD who do not experience FOG, healthy older adults, and healthy young adults. Methods: Eleven participants with PD and FOG, 16 with PD and no FOG, 18 healthy older, and 19 healthy young adults walked across a GAITRite walkway under four conditions: Natural, Fast (+50% of preferred cadence), Small (-50% of preferred step length), and SmallFast (+50% cadence and -50% step length). Coordination (i.e. phase coordination index) was measured for each participant during each condition and analyzed using mixed model repeated measure ANOVAs. Results: FOG was not elicited. Decreasing step length alone or decreasing step length and increasing cadence together affected coordination. Small steps combined with fast cadence resulted in poorer coordination in both groups with PD compared to healthy young adults and in those with PD and FOG compared to healthy older adults. Conclusions: Coordination deficits can be identified in those with PD by having them walk with small steps combined with fast cadence. Short steps produced at high rate elicit worse coordination than short steps or fast steps alone.

Original languageEnglish (US)
Pages (from-to)340-344
Number of pages5
JournalGait and Posture
Volume38
Issue number2
DOIs
StatePublished - Jun 2013
Externally publishedYes

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Gait
Parkinson Disease
Young Adult
Analysis of Variance

Keywords

  • Coordination
  • Freezing of gait
  • Parkinson disease

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Rehabilitation
  • Biophysics

Cite this

Gait coordination in Parkinson disease : Effects of step length and cadence manipulations. / Williams, April J.; Peterson, Daniel; Earhart, Gammon M.

In: Gait and Posture, Vol. 38, No. 2, 06.2013, p. 340-344.

Research output: Contribution to journalArticle

Williams, April J. ; Peterson, Daniel ; Earhart, Gammon M. / Gait coordination in Parkinson disease : Effects of step length and cadence manipulations. In: Gait and Posture. 2013 ; Vol. 38, No. 2. pp. 340-344.
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