Learn how to achieve this effect in this videotutorial by Dimitris Christou.
We'll use a nice and simple technique to build an abstract animation using Blender. You can actually use the technique described on any single mesh for some interesting results. I should thank cgcookie.com and Jonathan Williamson for the female basemesh model. You'll find this tutorial (and more) at www.blendbend.com.
As always the final .blend file is shared at blendswap.com.