[A simple kinetic model of contraction of striated muscle: full activation at full filament overlap in sarcomeres].

A simple kinetic model of muscle contraction is suggested. The rates of cross-bridge transitions from one kinetic state to another are supposed to depend on the averaged (over ensemble of actin-bound bridges) strain. With a proper set of the strain-dependent rates the model fits well a broad set of experimental data. Due to its simplicity, the relation between strain and stress is described by a set of ordinary differential equations; the model can be used for simulation of complex 3D muscle contraction.