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Characterisation of the Clothespin Relocation Test as a functional assessment tool.

Peter Kyberd1,2, Ali Hussaini2, Ghislain Maillet2

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The Clothespin Relocation Test, adapted for hand function measurement, shows potential for assessing arm movement performance. Initial psychometric properties were investigated in an able-bodied population.

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Area of Science:

  • Rehabilitation Medicine
  • Neuroscience
  • Biomechanics

Background:

  • The Clothespin Relocation Test (CRT) is an adapted arm training tool.
  • Measuring hand function requires validated instruments with established psychometric properties.

Purpose of the Study:

  • To investigate the psychometric properties of the CRT in an able-bodied population.
  • To understand the statistical properties of the CRT for future comparisons with different subject groups.

Main Methods:

  • Fifty able-bodied adults (29 males, 21 females, mean age 31) performed five runs of the CRT.
  • The test involves moving three clothespins between a horizontal and vertical bar.
  • Ten subjects participated in repeat testing sessions to assess repeatability.

Main Results:

  • Observed times ranged from 2.5 to 7.37 seconds, indicating a non-Gaussian distribution.
  • Mean time for the 'Up' movement was 4.1s and for the 'Down' movement was 4.0s.
  • A slight, non-significant increase in speed was noted over three sessions.

Conclusions:

  • The Clothespin Relocation Test demonstrates potential as a valid measure for arm movement performance.
  • Further psychometric validation is warranted for clinical application.