A crossover will normally target both heads of the pectoral muscles. The upper (clavicular) head will be targeted with the conventional position. The slight angle downwards will target the lower pec (sternal head). The alternative exercises we’ve raised above will hit both heads, and you can adjust them slightly to target one or the other. This is all about which exercises you choose and how you perform them. Cable crossovers can hit the lower pec but – like all exercises – it depends on the technique. Moving the hands downwards or towards the middle of your body achieves this.