LINEAR MODELING OF RELATIONSHIP BETWEEN EMG AND FMG: TOWARD HOME-BASED POST-STROKE REHABILITATION

Abstract

Neurological injuries such as stroke and cerebral palsy frequently result in substantial loss of arm function. While rehabilitation therapies are essential for recovering motor skills, many current devices targeting muscle strength deficits are impeded by their bulk, cost, and weight, limiting their regular use in clinics or home settings. This paper aims to describe variable resistance rehabilitation methods, emphasizing the advantages and disadvantages in contemporary device development. The study also examines the effect of applied resistance on muscles during hand flexion and extension using electromyography (EMG) and force myography (FMG). The findings underscore the potential of FMG to serve as a low-cost alternative to EMG in home-based rehabilitation systems. Designed linear model using the data collected from 10 healthy subjects demonstrates that EMG increases linearly with FMG, with a slope of 17.5 µV per Volt of FMG. This suggests a direct relationship between EMG and FMG.