  We present the stellar velocity dispersion measurements for 5 Luminous
Compact Galaxies (LCGs) at z=0.5-0.7. These galaxies are vigorously forming
stars with average SFR $\sim$ 40 M$_{\odot}$/yr. We find that their velocity
dispersions range from $\sim137\ \rm{km/s}$ to $260\ \rm{km/s}$, while their
stellar masses range between $4\times 10^{9}$ and $10^{11}$ M$_{\odot}$. If
these LCGs evolve passively after this major burst of star formation, their
masses and velocity dispersions, as well as their evolved colours and
luminosities are most consistent with the values characteristic of early-type
spiral galaxies today.
