The Error Range of the Assessment Method of Grip Force Adjustment Ability

Abstract

[Purpose] The purpose of this study was to identify the error range of the iWakka assessment method of grip force adjustment ability. [Subjects and Methods] The grip force adjustment abilities of 27 healthy individuals enrolled in this study were measured twice using iWakka. Bland-Altman analysis was used to evaluate the data. [Results] The analysis found no evidence of a fixed bias or a proportional bias. The minimum detectable change for the dominant hand was 1.2 g, and the minimum detectable change for the non-dominant hand was 2.1 g. [Conclusion] This study identified the error range of iWakka assessment method for grip force adjustment ability.