I presented our work at the Dynamics Days Europe 2021 conference. We discussed some of the latest advances in cardiac dynamics research during the symposium 'Physics based and data-driven analysis and control of cardiac dynamics' organised by Maxime Sermesant, Computational Cardiology, Inria, Université Côte d'Azur, France, as well as Ulrich Parlitz and Stefan Luther, Max Planck Institute for Dynamics and Selforganization, Göttingen, Germany. In my talk, I discussed our recent results regarding the inverse mechano-electrical problem in cardiac muscle tissue and compared two numerical approaches to solve this problem (see abstract here). Thank you for organizing the great symposium!