Put the pulley level right under your upper chest, to let you concentrate more on the upper pecs contraction.
Equality
Both weight stacks should be equal on the right and left sides. Don't let them become uneven, because that will create a muscle imbalance as soon as you start the exercise.
Proper form
Isolate your chest by keeping your wrists straight, elbows a little bent, and your shoulders back.
::FLAT DUMBBELL FLY ::
UPPER CHEST
To exercise your upper chest a little harder, do the dumbbell fly on an incline bench. Remember to keep wrists straight and aligned with your arms.
LOWER CHEST
To exercise your lower chest a little harder, do the dumbbell fly on a decline bench. Make sure to keep wrists straight and aligned with your arms.
