Neutral Grip Chins
Grasp a pull up bar with palms facing each other. You may use a triangle pulley handle as well positioned on top of the straight bar.
Pull yourself up. As high as your chest or to your own degree of strength.
Hold for 1 second, then lower back down to the full extended position.
Do not swing your body for momentum.
Latissimus dorsi (Lats)
Search on FreeTrainers.com