The low-cable cross-over is an isolation movement that uses a cable stack to target the upper portion of the pectoral muscles. It is common in upper-body and chest-focused muscle-building workouts, often in combination with presses or flyes from other angles to target all portions of the chest.
Unlike dumbbells, cables provide constant tension, including at peak contraction
Can quickly switch weights for dropsets
The line of resistance from the cables targets the muscles of the upper pectorals
Stretches the chest muscles under load which can lead to greater muscle gain