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KMID : 0357220090210040051
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Journal of Korean Society Physical Therapy
2009 Volume.21 No. 4 p.51 ~ p.56
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Evaluation of Static Balance in Postural Tasks and Visual Cue in Normal Subjects
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Seo Sam-Ki
Kim Su-Hyeon
Kim Tae-Youl
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Abstract
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Purpose: This study examined the difference in the static balance ability according to the visual cues and postural tasks in normal subjects.
Methods: Thirty participants (12 male, 18 female; mean age years) stood barefoot on a force platform in a one-legged stance, tandem Romberg stance and tandem Romberg with neck extension stance with a visual cue open and closes. The static balance was assessed by the center of pressure (CoP), surface electromyography root mean square (RMS) of the leg muscles according to the stance position.
Results: In the CoP tests, the difference in the unit path length and circumference area was affected by the visual cue according to the stance posture (p<0.01). In the RMS tests, the difference in the tibialis anterior and medial gastrocnemius muscle was affected by visual cue in accordance with the stance posture (p<0.01).
Conclusion: The visual cue and postural task affect the balance ability in normal subjects. Therefore, this study provides clinical evidence that the balance and postural control can be improved. Therapeutic intervention, such as an obstacle course, and a lower leg muscle performance program with a change in the base of support can affect the balance and postural control.
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KEYWORD
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Static balance, Center of pressure, Surface electromyography
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