Jerk Dip Squat

How to do it

This movement strengthens the dip portion of the jerk. Begin with the bar racked in the jerk position, with the shoulders forward to create a shelf and the bar lightly contacting the throat. The feet should be directly under the hips, with the feet turned out as is comfortable.
Keeping the torso vertical, dip by flexing the knees, allowing them to travel forward and without moving the hips to the rear. The dip should not be excessive. Return the weight to the starting position by driving forcefully though the feet.

What muscles does the Jerk Dip Squat work?: Mainly the quads, with help from the abs, calves.
What equipment do I need?: Barbell.
Is it good for beginners?: It is rated intermediate level.
How do I track progress on it?: Log each set and beat the weight or reps from last time. Liftrung shows your last set beside the next one and estimates your one-rep max from your sets.

Exercise descriptions: free-exercise-db, public domain.