Lat Stretch Arm Position

The article does not claim direct evidence that internal rotation is superior for the doorway stretch application. Internal arm rotation may allow more reach and side bending away from the anchor point during the stretch. The discussed doorway stretch was intended to affect trunk position, rib cage motion, frontal plane mobility, and breathing mechanics, not only the latissimus dorsi. External shoulder rotation is presented as useful when the goal is to directly lengthen the latissimus dorsi at the shoulder.