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Brazilian version of the Jebsen Taylor Hand Function test: An observational cross-sectional study on standardization, reliability and normative data

Published:September 19, 2022DOI:https://doi.org/10.1016/j.jht.2022.07.002

      Highlights

      • A standardized illustrated manual in Portuguese was provided.
      • The Brazilian version of the Jebsen Taylor Hand Function test is reliable.
      • Normative values for a Brazilian sample are now available for further comparison, both in clinical practice and research.

      Abstract

      Study Design

      This is an observational cross-sectional study.

      Background

      To assess dexterity and hand function, it is important to use validated performance-based outcome measures, such as the Jebsen Taylor Hand Function test (JTHFT). There is no previous study that has used this test in asymptomatic individuals to establish normal values for the Brazilian population, or to assess its reliability.

      Purpose

      The first aim of the study was to provide a standardized illustrated manual of the Brazilian version of the JTHFT. The second aim was to evaluate JTHFT test-retest reliability in asymptomatic adults, and the third aim was to determine normative values.

      Methods

      This study consists of 236 individuals aged 18-60 years, of both sexes, asymptomatic for pain or injury in the upper limbs. An illustrated manual of instructions was developed in Portuguese, test-retest reliability was assessed by determining the intraclass correlation coefficient (ICC), and to evaluate the average of the correlations between the items, the Cronbach Alpha coefficient was used. The standard error of measurements of the test and retest of the JTHFT subtasks was also performed.

      Results

      The Cronbach Alpha coefficient, resulted in acceptable average values 0.75 for the dominant hand and 0.76 for the nondominant hand. JTHFT subtests reveal moderate to excellent test-retest reliability, varying from 0.53, 95% CI: 0.39-0.64; to 0.93, 95% CI: 0.91-0.95 for the dominant hand, and for the nondominant hand 0.66, 95%: 0.57-0.74; to 0.92, 95% CI: 0.90-0.94.

      Conclusion

      JTHFT is reliable for a Brazilian sample in terms of test-retest measures and can be used both in research and in clinical practice. A standardized illustrated manual of application was provided.

      Keywords

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