1. Goal-directed secondary motor tasks: Their effects on gait in subjects with Parkinson disease 
Jaqueline M. Bond, BAppSc, Meg Morris, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 81, Issue 1, Pages (January 2000)
DOI: /S (00)
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig. 1
Speed of Parkinson disease and control groups across conditions.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /S (00) )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig. 2
Stride length values of Parkinson disease and control groups across conditions.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /S (00) )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions