MODELING OF MUSCLE CONTRACTION TO ASSESS THE DEVELOPED EFFORT BASED ON ELECTROMYOGRAPHY

Burzhomov Saadir Vladimirovich, Tatarenko Irina Evgenyevna

Electromyography is widely used in human-machine interfaces of wearable robots such as prosthetic and exoskeletons. Often it is used in order to estimate muscle activity which will be used as base for control. This paper’s goal is to create a method for estimation of muscle contraction that used electromyography signal. Mathematical model of underlying chemical reactions of muscle contractions was created to achieve it. This model is a set of differential equations which describes dynamics of concentrations of chemicals. The core reactions described by model are reactions of Lymn–Taylor cycle which describes actin myosin reactions which generate force. It should be noticed that energetics of muscle contraction was out of the scope. Thus, estimates of concentrations of adenosin triphosphate can be inadequate. That was deliberate chose due to difficulties of gathering data of sugar level by wearable robot. In a result of this article software was created for estimating force using electromyography signal. During this work experiment was conducted to gather info about actual force produced by muscle and electromyography signal. Examination of method was conducted by restoring force using electromyography.

Keywords:Electromyography, modeling, chemical kinetics, myosin, actin, Lymn–Taylor cycle, muscle contraction