Relationship of Subjective Visual Vertical with Static Postural Balance and Gait Asymmetry in Patients with the Lateral Medullary Infarction

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  • 延髄外側梗塞患者における自覚的視性垂直位と静止立位バランスおよび歩行非対称性の関連

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Abstract

<p>Purpose: To examine the relationship of subjective visual vertical (SVV) with static postural balance and gait asymmetry in patients with lateral medullary infarction.</p><p>Method: Nine participants with body lateropulsion (BL) due to lateral medullary infarction were enrolled. The relationships of SVV with three stabilometric parameters (length of center of pressure, envelopment area, and weight-bearing asymmetry during standing) and gait asymmetry were investigated.</p><p>Results: The mean (SD) SVV was found to be 7.4° (9.5°). SVV values significantly correlated with weight-bearing asymmetry in the eye-closed condition (r = 0.75, P < 0.05), whereas they did not significantly correlate with weight-bearing asymmetry in the eye-open condition. In addition, the absolute values of SVV significantly correlated with gait asymmetry (r = –0.78, P < 0.05).</p><p>Conclusion: In patients with lateral medullary infarction with BL, SVV was related to static postural balance in the eye-closed condition and gait asymmetry. Further investigation is needed to examine the causality between SVV and these measures.</p>

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