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Updated: Apr 15, 2026

The Knob Supination Task: A Semi-automated Method for Assessing Forelimb Function in Rats
Published on: September 28, 2017
Innovative evaluation of dexterity in pediatrics
Susan V Duff1, Dorit H Aaron2, Gloria R Gogola3
1Thomas Jefferson University, Department of Physical Therapy, 901 Walnut St., Suite 510, Philadelphia, PA 19107, USA.
Study Design:
Review paper.
Introduction:
Hand dexterity is multifaceted and essential to the performance of daily tasks. Timed performance and precision demands are the most common features of quantitative dexterity testing. Measurement concepts such as rate of completion, in-hand manipulation and dynamic force control of instabilities are being integrated into assessment tools for the pediatric population.
Purpose:
To review measurement concepts inherent in pediatric dexterity testing and introduce concepts that are infrequently measured or novel as exemplified with two assessment tools.
Methods:
Measurement concepts included in common assessment tools are introduced first. We then describe seldom measured and novel concepts embedded in two instruments; the Functional Dexterity Test (FDT) and the Strength-Dexterity (SD) Test.
Discussion:
The inclusion of novel yet informative tools and measurement concepts in our assessments could aid our understanding of atypical dexterity, and potentially contribute to the design of targeted therapy programs.

