Author/Editor     Cikajlo, Imre; Krpič, Andrej
Title     Postural responses of young adults to collision in virtual world combined with horizontal translation of haptic floor
Type     članek
Vol. and No.     Letnik 22, št. 4
Publication year     2014
Volume     str. 899-907
ISSN     1534-4320 - IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society
Language     eng
Abstract     Balance and postural response strategies change when subjects are exposed to horizontal translations of the floor or virtual reality or both. This may impact the balance training strategy and balance capabilities assessment in the future telerehabilitation. In the study 15 neurologically intact volunteers participated. Balance standing frame with virtual reality tasks and our novel haptic floor able to generate horizontal translations were used. The postural responses were measured with center of gravity and muscle electromyography of plantardorsiflexors, quadriceps, hamstrings, hip and spine muscles in three scenarios. The results demonstrated that center of gravity and electromyographic activity were comparable; with low latency at translation only, longer latency at combination with virtual reality and long latency when only virtual reality was applied. Soleus and semimembranousis demonstrated lower latency at back-right horizontal translations when virtual reality was present. The outcomes suggests that the postural strategy changes from ankle to ankle-hip strategy with availability of additional sensory systems which may be an important issue for objective balance evaluation in the clinical environment and remote telerehabilitation.
Descriptors     Posture
Stroke
rehabilitation
Keywords     postural response
balance training
apparatus
center of pressure
Berg Balance Scale
fall
instrument
evaluation
telerehabilitation
teletherapy
telesni položaj
možganska kap
rehabilitacija
posturalni odziv
vadba ravnotežja
naprave
premik projekcije telesnega težišča
Bergova ravnotežna lestvica
padec
ocenjevanje
telerehabilitacija
teleterapija