Previous work (Neff, JGR, 1999) revealed that one of the effects of the ozone depletion of recent decades has been a delay in the dynamical springtime in the troposphere over Antarctica. Recently, other authors have examined trends in the Antarctic Oscillation with a particular emphasis on its relation to warming in the vicinity of the Antarctic Peninsula. Here, we examine trends in the behavior of the Antarctic Oscillation using six stations that have nearly compete upper air sounding data from 1957 to the present at 500 hPa and encompass a larger geographical area than previous analyses. Emphasis is placed on both seasonal analyses as well as contrasting trends observed along the coast of East Antarctica with those observed over more centrally located sites within the polar vortex.