This video teaches just one approach to building functional latissimus dorsi muscles and it happens to be my personal favorite.
Position. Be sure to lock your thighs securely under the roller pads. Any superfluous motion in the lower body will drain proper forces needed for a clean line of pull.
Second, with an upright torso, begin to lean back approximately 25-30 degrees. Pull your scapulae together (adduction) and then begin to pull the handle to the top of your clavicles/upper chest.
Finally, as you ascend and the arms begin to lengthen, move the torso slightly forward and allow the shoulder blades to rotate slightly upward. This will evoke maximal…