Postural Control for Initiating Single Leg Squats in Healthy Subjects

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  • YAMANAKA Yuki
    Faculty of Health Care Sciences, Himeji Dokkyo University
  • URABE Yukio
    Graduate School of Biomedical & Health Sciences, Hiroshima University
  • OKUMA Ryo
    Department of Rehabilitation, Toranomon Hospital Kajigaya
  • SASADAI Junpei
    Graduate School of Biomedical & Health Sciences, Hiroshima University
  • FUJII Eri
    Department of Rehabilitation, Ooseto Rehabili Orthopedic Clinic

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Other Title
  • 健常者の片脚スクワット開始時の足圧中心制御について
  • ケンジョウシャ ノ カタ キャク スクワット カイシジ ノ ソクアツ チュウシン セイギョ ニ ツイテ

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Description

<p>[Purpose] The purpose of the present study was to investigate the mechanisms of center of pressure (COP) management for initiating single leg squatting. [Participants and Methods] Nine healthy young males were categorized according to the initial anterior-posterior direction of their COP migration when initiating squatting. The COP location within the foot area, sagittal plane knee and ankle joint movements, and electromyographic activities of ankle joint muscles before and during squatting were analyzed. [Results] The COP of 5 subjects initially moved forward when initiating squatting, whereas the COP of the other 4 subjects initially moved backward. In the forward group, the COP was located in a significantly posterior position within the foot area before squatting and the EMG activities of the gastrocnemius significantly decreased after the movement started. [Conclusion] It is probable that the direction of initial COP migration depends on the COP positioning of the initial standing posture prior to initiating single leg squats.</p>

Journal

  • Rigakuryoho Kagaku

    Rigakuryoho Kagaku 34 (2), 187-191, 2019

    The Society of Physical Therapy Science

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