高齢患者における等尺性膝伸展筋力と立ち上がり能力の関連  [in Japanese] Relationship between Isometric Knee Extension Strength and Ability to Rise from a Chair in Elderly Patients  [in Japanese]

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Author(s)

    • 大森 圭貢 OMORI Yoshitsugu
    • 聖マリアンナ医科大学横浜市西部病院リハビリテーション部 Department of Rehabilitation Medicine, St. Marianna University School of Medicine Yokohama City Seibu Hospital
    • 横山 仁志 YOKOYAMA Hitoshi
    • 聖マリアンナ医科大学病院リハビリテーション部 Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital
    • 青木 詩子 AOKI Utako
    • 聖マリアンナ医科大学病院リハビリテーション部 Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital
    • 笠原 美千代 KASAHARA Michiyo
    • 聖マリアンナ医科大学病院リハビリテーション部 Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital
    • 平木 幸冶 HIRAKI Kouji
    • 聖マリアンナ医科大学病院リハビリテーション部 Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital
    • 笹 益雄 SASA Masuo
    • 聖マリアンナ医科大学横浜市西部病院リハビリテーション部 Department of Rehabilitation Medicine, St. Marianna University School of Medicine Yokohama City Seibu Hospital

Abstract

本研究は,立ち上がり動作が障害される下肢筋力水準を明らかにすることを目的として,等尺性膝伸展筋力と立ち上がり能力の関連について検討した。対象は,運動器疾患を有さない65歳以上の高齢患者205名である。立ち上がり動作は,座面高40cm,30cm,20cmの台からの立ち上がりの可否を調査した。等尺性膝伸展筋力は,腰掛け座位で下腿を下垂させた肢位での筋力を徒手筋力測定器によって測定し,左右の脚の平均値を体重で除した値を百分率で表した。単変量解析によって,座面高40cm台からの立ち上がり不可能群,40cm可能群,30cm可能群,20cm可能群を比較した結果,年齢,身長,体重,Body Mass Index,等尺性膝伸展筋力に有意差を認めた。ロジスティック解析では,等尺性膝伸展筋力のみが,各座面高からの立ち上がりの可否に有意に影響を与えていた。等尺性膝伸展筋力が35%,45%,55%を上回った場合,それぞれ全ての者が40cm台,30cm台,20cm台からの立ち上がりが可能であった。一方,等尺性膝伸展筋力がこれらの値を下回る場合,筋力の低下に従って各座面高からの立ち上がり可能者の割合は減少した。等尺性膝伸展筋力が20%を下回った場合,40cm台,30cm台からの立ち上がり可能者を認めなかった。同様に等尺性膝伸展筋力が30%を下回った場合,20cm台からの立ち上がり可能者を認めなかった。これらのことは,高齢患者の等尺性膝伸展筋力と立ち上がり能力が密接に関連することを示しており,等尺性膝伸展筋力が一定水準を下回った場合,立ち上がり動作が困難になると考えられた。

The purpose of this study was to investigate the relationship between lower extremity strength and the ability to rise from a seated position in elderly patients. <br>The subjects were 205 elderly patients who were 65 years of age or older. They were classified into four groups according to their ability to stand up: those who were able to rise from a seat of 20 cm high, those able to rise from a seat of 30 cm high, and those able to rise from a seat of 40 cm high. Lower extremity strength was measured as isometric knee extension strength at the 90° angular flexion by a hand-held dynamometer. For analytic purposes, knee extension strength/body mass ratio was calculated. Age, height, body weight, Body Mass Index and isometric knee extension strength were analyzed. Logistic-regression analysis shows that knee extension strength is a critical factor affecting the ability to rise from a chair. Subjects with a knee extension strength of 35% or more were able to rise from a seat of 40 cm high. Subjects with a knee extension strength of 45 % or more were able to rise from a seat of 30 cm high, and subjects with a knee extension strength of 55% or more were able to rise from a seat of 20 cm high. On the other hand, subjects with a knee extension strength of under 20% were not able to rise from seat of 40 cm and 30 cm high, and subjects with a knee extension strength of under 30% were not able to rise from a seat of 20 cm high. <br>The results indicate that, for elderly patients, knee extension strength is an important factor for determining the ability to rise from a chair, and suggest that there is a certain threshold of knee extension strength under which no one can rise from a seated position.

Journal

  • Physical Therapy Japan

    Physical Therapy Japan 31(2), 106-112, 2004

    Japanese Society of Physical Therapy

References:  17

Cited by:  14

Codes

  • NII Article ID (NAID)
    110003994144
  • NII NACSIS-CAT ID (NCID)
    AN10146032
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0289-3770
  • Data Source
    CJP  CJPref  NII-ELS  J-STAGE 
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