Development of a body balance assessment system with integrated virtual reality technology; construct validity testing in healthy older adults

With the aim of early prediction of dementia, a body balance assessment system with integrated virtual reality (VR) has been developed and its construct validity was evaluated for the first time with 14 healthy older adults (OA). We measured their body sway speed in 22 different conditions, intentionally provoking movement in anteroposterior (AP) direction. As a result, significant differences were observed in AP sway under the VR environment (P< .020; effect size>.77) compared to baseline without the VR environment.