  We investigate the relationship between the high temperature deconfined phase
of the SU(2) gauge theory to the phases of the corresponding three dimensional
adjoint Higgs model. For various temperatures we simulate the effective theory
in a neighbourhood of the physical states, that is of those values of the
coupling constants that describe the infrared behaviour of the four dimensional
theory and which have been calculated by applying dimensional reduction
techniques. We show that the physical points belong to the confined phase of
the SU(2) adjoint Higgs model.
