In a nutshell
This meta-analysis (an analysis of data combined from several similar trials) examined the benefit of implementing virtual reality technology in the rehabilitation of patients with a motor disability following stroke.
Some background
More than half of stroke survivors continue to experience motor deficits (loss of muscle strength or function due to nerve damage), especially of the arms, which may significantly limit their activities of daily living (ADL) thereby impairing the quality of life.
Current rehabilitation programs are based mainly on physiotherapy. However, recent studies have shown that training has to be repetitive, task-specific, intensive and prolonged for recovery to occur. Since standard rehabilitation is labor intensive and time-consuming, and requires special facilities, only a modest benefit in the recovery of motor function is usually seen.
Virtual reality (VR) is a technology taken from video games. VR can simulate daily activities thereby enable task-specific and repetitive training while creating incentives and interest for the patient. Incorporating VR into rehab programs is of low cost and may help patient perform intensive rehabilitation training while keeping a high level of motivation.
Methods & findings
In this meta-analysis, 12 studies were reviewed, including a total of 195 patients suffering from upper arm motor deficits due to a stroke.
Eleven of the 12 studies showed a significant benefit for motor recovery with the use of VR compared to standard rehabilitation. When only data from randomized controlled trials (the most statistically-powerful type of experimental study) was considered, results showed that rehabilitation with the use of VR had a 4.9 higher chance of improving motor strength and function.
The bottom line
Virtual reality and video games are useful technologies that can accelerate the recovery of upper arm function after a stroke.
The fine print
This analysis included trials with different methods of testing. Some of the trials compared standard rehabilitation to VR alone, while other trials compared standard rehabilitation to VR therapy in combination with standard methods. This might have created a bias in the presented results.
What’s next?
Consult with your physician regarding the use of virtual reality and video games in the recovery of motor function after a stroke.
Published By :
Stroke
Date :
May 01, 2011
