Variability of Anticipatory Postural Adjustments During Gait Initiation in Individuals With Parkinson Disease.

ABSTRACT:

Background and purpose

In people with Parkinson disease (PD), difficulties with initiating stepping may be related to impairments of anticipatory postural adjustments (APAs). Increased variability in step length and step time has been observed in gait initiation in individuals with PD. In this study, we investigated whether the ability to generate consistent APAs during gait initiation is compromised in these individuals.

Methods

Fifteen subjects with PD and 8 healthy control subjects were instructed to take rapid forward steps after a verbal cue. The changes in vertical force and ankle marker position were recorded via force platforms and a 3-dimensional motion capture system, respectively. Means, standard deviations, and coefficients of variation of both timing and magnitu

SUBMITTER: Lin CC 

PROVIDER: S-EPMC5568770 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature