Approach to Evaluation of Hand Strength Given Visual Biofeedback

The precision, accuracy, coordination, and dexterity in hand strength are seen as adequate aspects to determine an individual's status and progress. In an attempt to explore those aspects, a cylindrical bar design-based measurement system has been developed. Individual isometric exertions are measured, given visual reference and feedback of the exertion levels using the computer screen display. When processed, the resulted data bring out some parameters in terms of which the aforementioned dynamic aspects can be described. This paper describes this assessment, as well as the hardware, the computer software that constitutes the system, and the calibration method. The test, protocols, and future experiences are stated. The present evaluation could serve as a baseline for diagnosis and assessments in different fields such as surgical procedures evaluation or basketball players hand assessment.