Reliability of the Modified Modified Ashworth Scale for the Muscle Tone of Poststroke Patients

뇌졸중 환자의 근긴장도 평가를 위한 개정된 개정된 Ashworth 척도의 신뢰도

  • Kim, Tae-Ho (Department of Physical Therapy, Daegu Health College) ;
  • Kim, Yong-Wook (Department of Physical Therapy, Jeonju University)
  • 김태호 (대구보건대학 물리치료과) ;
  • 김용욱 (전주대학교 물리치료학과)
  • Received : 2010.07.08
  • Accepted : 2010.08.11
  • Published : 2010.08.31

Abstract

Purpose : The clinical scale to assess spasticity of muscle was wildly used the modified Ashworth scale (MAS). But reliability of the MAS has been controverted for ambiguity among the grades. The purpose of this study was to establish the inter-rater reliability of the modified MAS (MMAS) translated into Korean in stroke patients. Methods : Twenty-five patients (sixteen men and nine women) with hemiplegia (ten right and fifteen left) were measured by two raters who were physical therapist in the rehabilitation hospital. The raters assessed spasticity of shoulder adductor, elbow flexor, wrist flexor, hip adductor, knee extensor, and ankle plantar flexor in the same patients according to ratings criteria of the MAS and the MMAS. Results : For the inter-rater reliability of the MAS, two raters agreed on 57.3% and the Kappa values were moderate ($\kappa$=0.41) between two rater. The inter-rater reliability of the MAS was fair for the wrist flexor and the hip adductor and moderate for the other muscles. The intra-rater reliability was good for the shoulder adductor and the knee extensor and moderate for the other muscles. For the inter-rater reliability of the MMAS, two raters agreed on 84.7% and the Kappa values were good ($\kappa$=0.78) between two rater. The inter-rater reliability of the MMAS was moderate for the hip adductor, and good for the shoulder adductor and the wrist flexor, and very good for the other muscles. The intra-rater reliability was good for the wrist flexor and the hip adductor and very good for the other muscles. Conclusion : This study suggests that the MMAS translated into Korean is reliable test scale for the spasticity with stroke patients in the clinical field.

Keywords

References

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