Improving cognitive function after brain injury: the use of exercise and virtual reality.
OBJECTIVE
To assess the impact of exercise and virtual reality (VR) on the cognitive rehabilitation of persons with traumatic brain injury (TBI).


METHODS
Before-after trial assessed cognitive function after a 4-week intervention program. A random allocation crossover assessed changes in reaction and movement times after a single bout of VR exercise and a no-exercise control condition.


METHODS
Brain injury rehabilitation unit in Edinburgh, Scotland.


METHODS
(1) Four-week intervention: a consecutive sample of 13 suitable TBI adults were compared to control populations (n > 25) of previous TBI patients of similar age, severity, and time postinjury. (2) Single-bout intervention: a consecutive sample of 13 suitable adults with moderate TBI, 6.29 to 202.86 weeks postinjury.


METHODS
Nonimmersive VR exercise.


METHODS
(1) Tests of attention, information processing, learning, and memory. (2) Reaction and movement times.


RESULTS
After the 4-week intervention patients performed significantly better than controls on the digit symbol (p < .01). verbal (p < .01), and visual learning tasks (p < .05). Significant improvements in reaction times (p < .01) and movement times (p < .05) were gained following a single bout of VR exercise.


CONCLUSIONS
Exercising in a virtual environment offers the potential for significant gains in cognitive function.
Grealy
M A
MA
Institute of Biomedical and Life Sciences, University of Glasgow, Scotland, UK.
Johnson
D A
DA
Rushton
S K
SK
D000293:Adolescent; D000328:Adult; D001930:Brain Injuries / Q000534:rehabilitation*; D003071:Cognition; D015444:Exercise / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014584:User-Computer Interface