Transversus abdominis muscle stiffness sensor with external force compensation using stretch sensor

Abstract

In this study, we use an stretch sensor to measure the stretch of the belt. We propose a method of estimating and correcting the force with which the muscle stiffness sensor is pressed by the belt from the stretch of the belt. In the evaluation experiment, we evaluate the similarity between EMG and muscle stiffness using the correlation coefficient and RMSE. The similarity between EMG and muscle stiffness was improved by correcting the external force by the belt with the proposed method.