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Adult norms for the Corbett Targeted Coin Test.

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Summary

This study establishes norms for the Corbett Targeted Coin Test (CTCT), a measure of dexterity. Results show performance varies by age and gender, providing a guide for clinical use.

Keywords:
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Area of Science:

  • Clinical measurement
  • Human motor control
  • Biomedical engineering

Background:

  • Dexterity is crucial for performing daily activities.
  • The Corbett Targeted Coin Test (CTCT) assesses dexterity, specifically palm-to-finger translation and proprioceptive target placement.
  • Established norms are currently lacking for the CTCT.

Purpose of the Study:

  • To establish normative data for the CTCT in a healthy adult population.
  • To provide a benchmark for evaluating and monitoring patient dexterity.

Main Methods:

  • Recruited 207 healthy adult participants (131 female, 76 male) aged 18-86.
  • Administered the CTCT following standardized procedures.
  • Calculated Quality of Performance (QoP) scores based on speed and accuracy, analyzing data by age, gender, and hand dominance.

Main Results:

  • Individual QoP scores ranged from 13.8 to 105.3 seconds.
  • Females generally demonstrated better median QoP scores than males across most age groups.
  • Optimal median QoP scores were observed in the 30-39 and 40-49 age brackets.

Conclusions:

  • Dexterity, as measured by the CTCT, tends to decrease with age and improve with smaller hand spans.
  • The established normative data will serve as a valuable tool for clinicians.
  • This data aids in the evaluation and tracking of patient dexterity related to palm-to-finger translation and proprioceptive target placement.