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A new study has suggested that virtual reality (VR) and physical reality exercises can be used to provide effective stimuli to increase movement speeds in Parkinson's Disease (PD) patients.

Investigators from the Departments of Occupational Therapy, Neurology, and Mechanical Engineering, the Institute of Education, and Allied Health Sciences, the National Cheng Kung University, Tainan, Taiwan, studied a group of 13 women and 16 men with PD who were age-matched against 14 women and 11 men without PD.

Each participant was asked to reach for and grasp a stationary ball as quickly as possible.

Then, moving balls were rolled down a ramp and the participants were asked to catch them when they reached a particular point on the ramp. When trying to catch the moving balls, the targets were visible for periods from 1.1 to 0.5 seconds. These trials were done in both normal physical reality and in a virtual reality environment.

This study contributes to the field of rehabilitation by providing evidence about how to manipulate task and environmental constraints to improve movement in persons with PD, said lead investigator Hui-Ing Ma.

"Specifically, this study shows how to manipulate VR scenarios to improve movement speed in persons with PD, while at the same time depicting their movement characteristics in VR, he said.

Our study extends the previous findings of the moving target effect in physical reality to VR. Our findings suggest that with an appropriate choice of cueing speed, VR is a promising tool for offering visual motion stimuli to increase movement speed in persons with PD, he added.

The study will be published in the August issue of the Archives of Physical Medicine and Rehabilitation.
source:agency
tagsWomen,Stimuli,Parkinson,exercises

Source: http://www.indiahealthandwellness.com/2011/07/virtual-exercises-help-parkinsons.html

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