Before revision:  We then perform  single cell and tissue simulations in presence of various combination of the mechanisms and applied stretch , in order to assess the relative significance of each mechanism in determining action potential duration, conduction velocity and rotor stability.
After revision:  We then perform single cell and tissue simulations in presence of various stretch regimes and MEC pathways. This allows us to assess the relative significance of each mechanism in determining action potential duration, conduction velocity and rotor stability.