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Inter-and Intra-rater Reliabilities of Myotonometric Measurement of the Erector Spinae Muscles in the Young and Old Age Groups

청년과 노인 연령군에 따른 척주세움근에 대한 마이오톤의 측정자 간, 측정자 내 신뢰도

  • Han, Hyo-Gyeong (Hanyang University Hospital) ;
  • Choe, Ye-Ju (Ilsan Central Hospital) ;
  • Jeong, Seong-Ho (Cheongju Sandang Senior Club) ;
  • Lee, Na-Kyung (Dept. of Physical Therapy, Konyang University)
  • 한효경 (한양대병원) ;
  • 최예주 (일상중심병원) ;
  • 정성호 (청주상당시니어클럽) ;
  • 이나경 (건양대학교 물리치료학과)
  • Received : 2021.02.03
  • Accepted : 2021.02.19
  • Published : 2021.02.28

Abstract

Purpose : The purpose of this study is to examine inter-and intra-rater reliabilities of myotonometric measurements of tone, elasticity and stiffness for the erector spinae muscles of the young and the elderly populations. Methods : A total of 102 (69 young adults from K university and 33 older adults from the D community center in Daejeon) were enrolled in this study. The two different raters measured each side of the erector spinae muscles at prone position. After each rater performed first measurement for a subject, 30 minutes of rest was given. The same rater then repeated the second myometric measurement on the subject. The collected data on the tone, elasticity, and stiffness of the erector spinae were analyzed using intraclass correlation coefficient (ICC) to determine inter- and intra- rater reliabilities. Results : The inter-and intra-rater reliabilities of the myotonometric measurement of the erector spinae for the total subjects were excellent (ICC > 0.9, p < 0.001). Within each of the elderly group and the young group, inter- and intra-rater reliabilities were also excellent (ICC > 0.8~0.9 / p < 0.001, ICC > 0.75~0.9 / p < 0.001, each). Conclusion : The measurement of muscle tone, elasticity, and stiffness for the erector spinae muscles using the myotonometer had excellent reliability. It was confirmed that a highly reliable myometric measurement on the erector spinae can be obtained regardless of whether it is from young or elderly people. This suggests that the myotonometer can be a useful tool to measure muscular properties of the erector spinae of the young and old as an evaluative instrument.

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