Comparison of Task Performance, Hand Power, and Dexterity with and without a Cock-up Splint

[Purpose] The purpose of this study was to investigate the difference in task performance, grip and pinch strength, and dexterity with and without cock-up splints, which are widely used in occupational therapy practice. [Methods] Twenty-three participants performed Jebsen-Taylor hand function test and grooved pegboard for task performance and dexterity. The power grip and pinch strength was measured using Jamar hydraulic hand dynamometer and pinch gauge. [Results] In the result of the Jebsen-Taylor hand function test, task performance with the cock-up splint was slower compared to without the splint for all items. Men's grip power with the cock-up splint was found to be significantly decreased compared to without the splint. Women's grip and palmar pinch strength with the splint decreased significantly compared to without the splint. In the grooved pegboard test, the dexterity of both men and women with the cock-up splint decreased significantly compared to without the splint. [Conclusion] To assist patients to make wise decisions regarding the use of splints, occupational therapists must have empirical knowledge of the topic as well as an understanding of the theoretical, technical, and related research evidence. The results of this study will be useful in the analysis and understanding of changes in hand function in splint applications for people with hand dysfunction.