PNF and Movement

Korea Proprioceptive Neuromuscular Facilitation Association (대한고유수용성신경근촉진법학회)
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The Test-Retest Reliability and Criterion-Related Validity of a Trunk Stability Robot When Measuring Static Sitting and Standing Symmetry in Stroke Patients

뇌졸중 환자들을 위한 체간 안정화 로봇의 정적인 앉기와 서기 대칭성 평가의 검사-재검사간 신뢰도와 기준 관련 타당도

  • An, Seung-Heon (Department of Physical Therapy, National Rehabilitation Center) ;
  • Kim, Dong-Hoon (Department of Physical Therapy, Bundang Jesaeng Hospital) ;
  • Jang, Young-Min (Department of Physical Therapy, National Rehabilitation Center)
  • 안승헌 (국립재활원 물리치료실) ;
  • 김동훈 (분당제생병원 물리치료실) ;
  • 장영민 (국립재활원 물리치료실)
  • Received : 2018.09.27
  • Accepted : 2018.11.05
  • Published : 2018.12.31
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Abstract

Purpose: The purpose of this study was to examine test-retest reliability and criterion-related validity of a trunk stability robot when measuring the weight-bearing symmetry static sitting and standing in stroke patients. Methods: For 27 stroke patients, weight-bearing symmetry was assessed twice, 7 days apart. The intraclass correlation coefficient (ICC2,1) and minimal detectable change (MDC) were used to examine the level of agreement between test and retest. The criterion-related validity of weight -bearing symmetry was demonstrated by Spearman correlation of modified Barthel index (MBI), the sit to stand test (STS), the timed up & go Test (TUG), and the function in sitting test (FIST). Results: the test-retest agreements were excellent for the weight-bearing symmetry of static sitting (ICC2,1: 0.90) and standing (ICC2,1: 0.89). It all showed that the acceptable MDC for the weight-bearing symmetry of static sitting and standing was 0.11 and 0.16, respectively (highest possible score<20 %), indicating that the measures had a small and acceptable degree of measurement error. The weight-bearing symmetry of static sitting was significantly correlated with the TUG(r=-0.45) and FIST(r=0.46)(p<0.05); the weight-bearing symmetry of static standing was also significantly correlated with MBI (r=0.65), TUG (r=-0.67), FIST (r=0.61)(p<0.01), and STS (r=-0.47)(p<0.05). Conclusion: The weight-bearing symmetry of static sitting and standing assessed by the trunk stability robot showed highly sufficient test-retest agreement and mild-to-moderate validity. It could also be useful for clinicians and researchers to evaluate balance performance and monitor functional change in stroke patients.

Keywords

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Fig. 5. Trunk stability robot.

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Fig. 2. Static sitting and standing test.

Table 1. General characteristics of subjects

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Table 2. Performance evaluation score of subject

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Table 4. Correlation of weight-bearing symmetry of static sitting and standing, MBI, STS, TUG, FIST

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Table 3. Test-retest reliability and MDC of weight-bearing symmetry of static sitting and standing

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