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Abstract
Given the prevalence of cognitive impairment in older adults and its frequent misdiagnosis or delayed diagnosis, non-pharmacological interventions have been proposed as solutions, which include cognitive training, prevention or risk reduction of dementia using virtual reality (VR) technology. This study aimed to investigate the effects of a virtual reality cognitive-motor training intervention (VRCMTI) on improving cognitive and physical function in older adults with cognitive impairment. We co-designed the VRCMTI system with multiple stakeholders by organizing symposiums and conducting pilot evaluations. The VRCMTI consisted of three virtual cognitive tasks and three upper limb movement tasks focused on improving working memory, spatial cognition, attention shifting, executive control, joint flexibility, and coordination. One hour of brain cognition and upper limb motor training was performed each week during the 12-week intervention. Sixty older adults were included in the study and randomly assigned to either the VR group or the control group. Participants in the control group received usual care and would not undergo any intervention training. Task independence, accuracy and time were measured during each session. The results showed that the VR group significantly improved global cognitive ability scores compared to the control group, especially in attention and verbal cognition. In addition, older adults in the VR group also showed significant improvements in upper limb motor skills, driven primarily by movement quality and processing speed. The findings suggest that VRCMTI could improve cognitive function and enhance motor performance. When implemented with routine health care for older adults, this practical and effective intervention may be an appropriate complementary strategy for maintaining cognitive health and preventing motor deterioration.
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