Highlights
- •This normative data can be used with the Corbett Targeted Coin Test.
- •Median scores ranged from 28.7 to 53.3 seconds.
- •Dexterity to some extent decreased with age and increased with smaller hand spans.
Abstract
Study Design
Clinical measurement
Introduction
Dexterity is important for daily activities. The Corbett Targeted Coin Test (CTCT)
measures dexterity with palm-to-finger translation and proprioceptive target placement,
but lacks established norms.
Purpose of the Study
To establish norms for the CTCT with healthy adult subjects.
Methods
The inclusion criteria consisted of participants that were community dwelling, non-institutionalized,
able to make a fist with both hands, perform finger-to-palm translation of twenty
coins, and be at least 18 years of age. CTCT standardized testing procedures were
followed. Quality of performance (QoP) scores were determined by speed in seconds
and number of coin drops (each a 5-second penalty). QoP was summarized within each
age, gender and hand dominance subgroup using the mean, median, minimum, and maximum.
Correlation coefficients were computed for relationships between age and QoP, and
between handspan and QoP.
Results
Of the 207 individuals who participated, 131 were females and 76 males with an age
range of 18-86 and mean age of 37.16. Individual QoP scores ranged from 13.8 to 105.3
seconds, with median scores ranging from 28.7 to 53.3 seconds. The mean for males
was 37.5 seconds for the dominant hand (range 15.7-105.3) and 42.3 seconds (range
17.9.-86.8) for the non-dominant hand. The mean for females was 34.7 seconds for the
dominant hand (range 14.8-67.0) and 38.6 seconds (range 13.8.-82.7) for the non-dominant
hand. Lower QoP scores indicate a faster and/or more accurate dexterity performance.
Females showed better median QoP for most age groups. The best median QoP scores were
seen in the 30-39 and 40-49 age ranges.
Discussion
Our study agrees to some extent with other research that reported dexterity decreases
with age, and increases with smaller hand spans.
Conclusion
Normative data for the CTCT can be a guide for clinicians evaluating and monitoring
patient dexterity with palm-to-finger translation and proprioceptive target placement.
Keywords
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Article info
Publication history
Published online: March 11, 2023
Accepted:
September 28,
2022
Received in revised form:
July 24,
2022
Received:
February 4,
2022
Publication stage
In Press Corrected ProofFootnotes
Conflict of interest: The authors whose names are listed above certify that they have no affiliations with or involvement in the Corbett Targeted Coin Test or non-financial interest in the subject matter or materials discussed in this manuscript.
Identification
Copyright
© 2022 Elsevier Inc. All rights reserved.
