I don't understand your definition of chi, "basicly the movement and life". I could see it being defined as being the energy of life, however, it goes much further than that. I do not see chi as having much of anything to do with movement.
I don't focus on anything except my body dynamics when I am lifting stretching etc. If you place the body in it's proper alignment when you are lifting then you will have optimum power through structural integrity. If you have structural integrity and the channels of the body are open, energy is allowed to flow freely.
Powerlifters may meditate before a competition to settle thier mind and direct their intention to what the are going to try to accomplish.