Stand facing behind cable bar, mounted on each side to shoulder height narrow double pulley cables. Grasp cable bar with wide overhand grip. Position bar chest height with elbows angled behind. Lean and step forward with one foot in front, bending forward leg.
Push cable bar forward until arms are straight. Return cable bar to original position until slight stretch is felt in chest or shoulders. Repeat.
Cable pulleys should be relatively close together, narrower than width of arms extended out to sides (but not too close), closer than what is typically found on standard cable cross over setup. Range of motion will be compromised if grip is too wide.