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The problem of constructing the kinetic equation with the description ofmotion of a hole in systems with strong spin- hole interaction (such as high-temperature superconductors) in terms of the spin polaron has been consideredin the framework of the regular antiferromagnetic $s-d$ model. It has beenshown by the example of the electrical resistivity that kinetics is determinedby the properties of the bands of the spin polaron (rather than "bar hole") andtheir quasiparticle residues $Z_{k}$. The cases of low and optimal doping ofthe $CuO_{2}$ plane have been considered. It has been shown that therearrangement of the spectrum of the lower polaron band, as well as the strongdoping dependence of the quasiparticle residues $Z_{k}$ is decisive in theunified consideration of these cases.

On the Kinetic Equation and Electrical Resistivity in Systems with Strong Spin- Hole Interaction