Reliability of Jeweler Rings and a Revised Figure-of-Eight Circumference Protocol for the Assessment of Finger and Hand Circumferences.
2021
Background: Assessing the circumference of the hand and fingers can be challenging. Therefore, we studied the reliability of jeweler rings and a revised figure-of-eight (figure-8) protocol for the clinical assessment of finger and hand circumference. Methods and Results: Thirteen patients residing in a rehabilitation center were recruited. Inter- and intrarater reliability of the jeweler rings as well as the revised figure-8 protocol were assessed. Jewelers rings were used to assess the circumferences of the middle and ring finger of both hands. The figure-8 method was used to assess the circumference of both hands. Reliability analyses were performed in Statistical Package for the Social Sciences 26 and demonstrated an excellent reliability for the jeweler rings as well as the revised figure-8 protocol, represented by single random measure intraclass correlation coefficient(2,1) values of at least 0.973 and Cronbach alpha of at least 0.99. Conclusions: Circumference measurements are valid to use; however, reliability issues do exist in clinical practice. Assessing the circumference of fingers with our new jeweler rings protocol and the circumference of the hand by means of a revised figure-8 protocol is highly reliable in a clinical setting.
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