1. Comparison of Virtual Reality Versus Physical Reality on Movement Characteristics of Persons With Parkinson's Disease: Effects of Moving Targets 
Ching-Yi Wang, MS, OT, Wen-Juh Hwang, MD, Jing-Jing Fang, PhD, Ching-Fan Sheu, PhD, Iat-Fai Leong, PhD, Hui-Ing Ma, ScD, OT 
Archives of Physical Medicine and Rehabilitation 
Volume 92, Issue 8, Pages (August 2011)
DOI: /j.apmr
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Experimental setup for (A) physical reality and (B) virtual reality.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2
Screen presentation of the virtual reality task. (A) A hammer to strike the ball to start a trial. (B) The ball rolling down the ramp. (C) The participant reaching for the ball.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

4. Fig 3
Mean and SE for (A) success rate, (B) movement time, (C) peak velocity, and (D) PTA for the PD and control groups.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions