  We consider the contraction of some non linear sigma models which appear in
effective supergravity theories. In particular we consider the contractions of
maximally symmetric spaces corresponding to N=1 and N=2 theories, as they
appear in certain low energy effective supergravity actions with mass
deformations.
  The contraction procedure is shown to describe the integrating out of massive
modes in the presence of interactions, as it happens in many supergravity
models after spontaneous supersymmetry breaking.
