2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34948On the bases of the Papapetrou equations with various supplementary conditions and other approaches a comparative analysis of the equations of motion of rotating bodies in general relativity is made. The motion of a body with vertical spin in a circular orbit is considered. An expression for the spin-orbit force in a post-Newtonian approximation is investigated.7 pages, Latex2e, amsmath, to appear in Grav. CosmolGeneral Relativity and Quantum Cosmologytext