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KMID : 1137820090300030255
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의공학회지
2009 Volume.30 No. 3 p.255 ~ p.262
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Effects of Postural Stability using Electrical Stimulation on the Lower Limb
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Lee Sun-Youn
Yu Mi
Kim Dong-Wook
Kim Nam-Gyun
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Abstract
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The present study analyzed the association between postural control and electrical stimulation by measuring body sway when use the electrical stimulations were applied to different stimulation zones in lower limbs. The subjects were 14 young adults and were, tested for two different visual condition: eyes open and eyes closed. The experiments were also performed in two different stance case: one legged stance and two legged stance while electrical stimulations were applied concurrently or individually to tibialis anterior and triceps surae. Postural responses were assessed by analyzing COP sway path, sum of COP sway measured by a forceplate. The results showed that the direction of the COP shift changed in accordance with the direction of stimulation and showed sensory adaptation as the experiment progressed for two legged stance case. For one legged stance case, concurrent electrical stimulation both sides of muscles was found to be effective for enhancement of postural balance control.
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KEYWORD
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electrical stimulation, postural stability, body sway, COP(Center of pressure), Somatosenseory system
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