XD Dramatic stand up scene. That's a good one man!
When i saw that, i thought of enemy entities re spawning a second time by getting up XP Lol.
But to answer your question, i think you need to first animate it bud. You can do this by using milkshape3D, fragmotion, 3d Max. And manipulate it from there, and i think the animation bones come with the model if i remember right, or you could make your own. Hope this helps a little.
http://forum.thegamecreators.com/?m=forum_view&t=211333&b=20
http://forum.thegamecreators.com/?m=forum_view&t=210878&b=20
