Empty can test, can do it on your own

https://www.youtube.com/watch?v=qjHOqydDhxo
Internal/External rotation Exercises

Cables  https://www.youtube.com/watch?v=_lU8A9UR4s8

DBs      https://www.youtube.com/watch?v=tijDtTzNdu8

From what I remember, shoulder impingement in bodybuilders is caused by combination of bench press and vertical press. Too much bench presses makes your shoulder to round forward, That in itself does not cause the impingement. When you do overhead presses, the shoulder rounding causes the small suprasinatus mucles to rub/catch against other muscles causing it to be inflammed and causing the pain.

To balance the shoulder rounding, you have to increase upper back and rear delt exercises in your routines to "pull back" your shoulders.

http://forum.bodybuilding.com/showthread.p...#post1266579671

For those who interested/concern, this is a postural routine written by someone experienced. Run the kyphosis routine which cut off all chest exercise and increase a lot upper back and rear delt work. Do bulk while running this routine as you are trying to build muscle at those lagging part.