足趾把握筋力の測定と立位姿勢調整に及ぼす影響の研究  [in Japanese] A study on the measurement of toes grasping strength and effect of standing postural control  [in Japanese]

    • 堀内 邦雄 HORIUCHI Kunio
    • 日本大学大学院理工学研究科医療・福祉工学専攻 Medical and Welfare Engineering, Graduate School of Science and Technology, Nihon University
    • 青木 和夫 AOKI Kazuo
    • 日本大学大学院理工学研究科医療・福祉工学専攻 Medical and Welfare Engineering, Graduate School of Science and Technology, Nihon University

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Abstract

足趾および足底が立位や歩行に果たす役割は重要である. 本研究は足趾把握筋力の測定器を作製し, 足趾把握筋力の加齢による変化と, 立位の平衡調整能力および歩行時間との関係について検討することを目的とした. 測定器は Smedley 式握力計を改良して試作した. 足関節を保持する支柱の位置は被験者の足長に応じて調整可能にした. 測定値の再現性はR=0.953で良好であることを確認した. 被験者は各年代層を含む男女97名 (20~84歳) とした. 測定項目は足趾把握筋力, 握力, 重心動揺, 片足立位保持時間, 上肢前方到達距離および, 10m歩行時間とした. その結果以下のことが明らかになった. (1) 足趾把握筋力は加齢により低下し, 低下率は握力よりも大きい傾向を示した. (2) 足趾把握筋力と握力, 開眼片足立位保持時間, 上肢前方到達距離および, 10m歩行時間の間には有意な相関が認められた. (3) 重心動揺とは相関が認められなかった. これらのことを検討した結果, 足趾把握筋力は立位の保持や前傾への耐性などの平衡調整に影響を与えると考えられ, 高齢者の転倒事故対策などに応用可能であると思われる.

Toes and soles of feet have an important role to keep stability in standing posture and to perform the bipedal locomotion. The purpose of this study is to develop a toes grasping strength meter, then to examine age-related changes and the relationship between the toes grasping strength and postural control performance. A remodeled Smedley's dynamometer was fixed on a panel and an adjustable ankle holder was set on the panel to measure the toes grasping strength. At first, we examined the reproducibility of the measuring method and the correlation coefficient of two separate measures was 0.973. Then we measured toes grip strength of 97 male and female subjects aged 20 to 84 with the measurement of grip strength, postural sway, foot-balance, functional reach and time of 10m walk. The results showed that the toes grasping strength was related to age and declined by ageing faster than grip strength. The toes grasping strength had significant correlation coefficients with grip strength, foot-balance with eyes open, functional reach and the time of 10m walk but had no correlation with postural sway. It was suggested that the toes grasping strength related to the function of postural control at standing position, especially the tolerance to falling forward, and it can be applied to the prevention of falling accidents of the elderly.

Journal

JES Ergonomics  

JES Ergonomics 40(3), 139-147, 2004-06-15 

Japan Ergonomics Society

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Codes

  • NII Article ID (NAID) :
    10013133908
  • NII NACSIS-CAT ID (NCID) :
    AN00199371
  • Text Lang :
    JPN
  • Article Type :
    Journal Article
  • ISSN :
    05494974
  • NDL Article ID :
    6985304
  • NDL Source Classification :
    ZM1(科学技術--科学技術一般)
  • NDL Call No. :
    Z14-435
  • Data Source :
    CJP  CJPref  NDL  J-STAGE