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http://dx.doi.org/10.5302/J.ICROS.2007.13.9.843

Development of a Somatosensory Stimulation System for the Improvement of Postural Stability  

Yu, Mi (전북대학교 의용생체공학과)
Eun, Hye-In (전북대학교 헬스케어공학과)
Piao, Yong-Jun (전북대학교 의용생체공학과)
Kim, Dong-Wook (전북대학교 생체정보공학부)
Kwon, Tae-Kyu (전북대학교 생체정보공학부)
Kim, Nam-Gyun (전북대학교 생체정보공학부)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.13, no.9, 2007 , pp. 843-850 More about this Journal
Abstract
This paper proposes a somatosensory stimulation system for the improvement of postural stability using vibration as somatosensory stimulation. This system consists of vibratory stimulation and postural response measurement. To evaluate this system, the center of pressure(COP) was closely observed in turn with simultaneous or separate mechanical vibratory stimulations to flexor ankle muscles (tibialis anterior, triceps surae) and two plantar zones on both feet while standing on a stable and an unstable support. The simultaneous vibratory stimulations cleared influenced postural stability and the effects of vibrations were higher with the unstable support. In separate vibratory stimulations, the extent of the COP sway reduced when the direction of the vibratory stimulations and that of the inclination of body coincided for flexor ankle muscle stimulations. In the contrary, the extent of the COP sway increased when the direction of the stimulations and that of body inclination coincided for plantar zone stimulations. These results can be useful for the development of rehabilitation systems that utilizes somatosensory inputs for postural balance.
Keywords
somatosensory stimulation; postural stability; vibration; unstable support;
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