Due to the amount of internal rotation of the humerus during this movement, this exercise may worsen shoulder impingement syndrome.
[1] This is no longer common, and this term is now mostly used to refer to the exercise involving pulling the body up to a bar.
Due to the amount of internal rotation of the humerus during this movement, many trainers and organizations (such as the ACSM and NFPT) consider this a contraindicated exercise for all trainees.
Abstaining from raising the bar above the chest line will help in avoiding injury or symptoms related to rotator cuff impingement.
[2] If pain arises, stop this exercise immediately, as it may be an indicator of a rotator cuff disorder.