Original scientific paper
https://doi.org/10.69589/hsv.41.1.11
Validation of the hamocodi measuring system for wrist fine motor assessment
Lara Juriša
; University of Zagreb Faculty of Kinesiology, Zagreb, Hrvatska
Tatjana Trošt
; University of Zagreb Faculty of Kinesiology, Zagreb, Hrvatska
Dino Bratulić
; University of Zagreb Faculty of Kinesiology, Zagreb, Hrvatska
Abstract
Proper neuromuscular function of the wrist joint is essential for a wide range of daily and sports activities. However, many existing assessment tests rely primarily on strength measures or subjective evaluations. The aim of this study was to examine the metric properties and validate the HAMOCODI measurement system for the assessment of fine motor function of the hand. A total of 96 students (32 females, 64 males; age 23,98 ± 4,01 years) from the Faculty of Kinesiology in Zagreb participated in the study. The research was conducted at the Faculty of Kinesiology in Zagreb, with prior approval from the institutional Ethics Committee. Measurements were performed using the HAMOCODI system through tests of Force tracking and Position tracking at the wrist joint. The 9-Hole Peg Test was used as the reference standard. Normality of data distribution was confirmed using the Kolmogorov-Smirnov test. Correlation analysis did not reveal a significant association with the reference test, and the obtained low and negative values suggest that the tests assess different dimensions of wrist function. While successful performance of the 9-Hole Peg Test requires a precise fingertip pincer grip, the HAMOCODI system measures movement and force control in the wrist joint. High reliability in both tests was established using internal consistency methods, with Cronbach’s alpha and the Kaiser– Caffrey coefficient calculated. Test homogeneity was assessed through correlations between three consecutive trials, indicating satisfactory item homogeneity. The HAMOCODI measurement system proved to be a reliable instrument for assessing specific components of wrist joint function, but not a valid one in relation to the reference standard, the 9-Hole Peg Test, suggesting that the two tests measure different dimensions of fine motor skills, each at a satisfactory level.
Keywords
wrist function, movement coordination, force control, performance accuracy, motion control
Hrčak ID:
348765
URI
Publication date:
30.6.2026.
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