Model not translating along its position with Animate Physics option enabled.

I'm trying to develop an infinite running game playable using Kinect. My experience with c# and unity is very less hence a simple answer would very much be appreciated.

I wan't a simple constant translation along the 'z' axis. This is achievable only if I turn off the 'Animate physics' option for my player, but if I do that, my gestures using kinect are not registered.

Even when the option is off, the translate function is working, but is translating invisible stuff, not the actual player. I read some answers describing the use of emptyObjects, but din't really get it. Thanks Alot ;)