Lying Cable Flies
Cable flies are an excellent way to add shape and size to the chest, and are therefore an excellent exercise for those with Pectus Excavatum.
Grasp two opposing low pulley stirrup attachments. Lie supine on bench, in middle and perpendicular to both pulleys. Slightly bend elbows and internally rotate shoulders so elbows are back.
Bring cable attachments together in hugging motion with elbows in fixed position and shoulders internally rotated so elbows are to sides. Return to starting position until slight stretch. Repeat.
Pectoralis Major, Sternal
Pectoralis Major, Clavicular
Biceps Brachii, Short Head