Cable Crossover Upper Chest

The low-to-high cable crossover targets the clavicular fibres of the pectoral, the upper chest, by moving the arms upward and inward along the line those fibres actually run. Setting both pulleys at the bottom and sweeping the hands up to cross in front of the chest matches the direction of pull far more closely than a flat press does, which is why the exercise appears so often in programmes aimed at filling out the top of the chest. The cable keeps tension constant through the whole arc, including at the point where the hands meet and a dumbbell would offer nothing. Keep a slight fixed bend in the elbows for the entire set, since straightening them strains the joint and bending them further turns the fly into a press. Use moderate loads, because a heavy crossover almost always turns into a press and the upper chest loses the isolation the exercise was chosen for.