A Push Jerk is a progression of the push press in which a forceful hip drive coupled with a drop under the bar--a catch--is used to aid in getting the load overhead. When done properly, the bar moves in a perfectly vertical plane only, which is the most efficient path. To do this, one must move the head back to make room for the bar, then replace the head to the normal position after the bar passes by. The lift is complete when the arms are locked out overhead, with the head "through the window", and the feet are reset into the jump stance (directly under the hips). Finally, some other key points to address is the importance of having active shoulders, and a small dip to facilitate the drive of the load upwards. The drop under the bar makes it so the load doesn't have to travel as far to m