Influence of Active Fingertip Contact with a Stable Surface on Postural Sway and Electromyographic Activities of the Lower Extremity Muscles Immediately after Turning

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概要

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• Recent studies have shown that active contact cues from a fingertip provide information that leads to reduced postural sway during static standing. Although the risk of falling increases immediately after turning, little is known about the influence of active fingertip contact with a stable surface. the purpose of this study was to investigate the influence of fingertip contact on the sway and the electromyographic (EMG) activities of the lower extremity muscles immediately after turning 180°. Twelve healthy male volunteers participated in this study. Sway was measured by the center of pressure (COP) and was compared under two conditions: (1) standing without touching a stable surface and (2) standing with the right index fingertip lightly touching a stable surface (<1N). The EMG activities associated with sway under the two conditions were measured and compared. More areas of COP were observed during standing without touching compared to standing with light touching. No significant differences in the length of COP and EMG activities were observed between the two conditions. These results suggest that active fingertip touch contact with a stable surface decreases sway immediately after turning by finely controlling the lower extremity muscles.

• 川崎医療福祉大学の論文

著者

• Osaka Hiroshi

  Department Of Rehabilitation Faculty Of Health Science And Technology Kawasaki University Of Medical

• Kobara Kenichi

  Department Of Rehabilitation Faculty Of Health Science And Technology Kawasaki University Of Medical

• Yoshimura Yosuke

  Department Of Chemistry Faculty Of Science Kyoto University

• Ishida Hiroshi

  Department Of Agricultural Chemistry Faculty Of Agriculture Tohoku University

• Watanabe Susumu

  Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan

• Suehiro Tadanobu

  Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare

• Yoshimura Yosuke

  Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare

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