I’m am trying to understand better when to use these exercises and when it would not be helpful. I have clients who have shoulder issues. I want to be sure I pick the right exercises for the right issue. Also, the issue of neck pain came up when I tried some of these exercises. So therefore should we avoid those?
No exercise should cause pain. If someone experiences pain from any movement or exercise, they need to consult their physician before continuing the movement. It sounds to me that you do not have the knowledge or experience to be working with clients who have pain or movement issues. I would recommend taking courses and finding more information on such issues. You can work with these types of clients as part of the education process, but you need to be directed and do more studying in order to be able to evaluate such issues and determine how to proceed, ie. prrogram design, progress, regress, adjust, etc.
Without the client in front of me for an assessment/evaluation, I could not begin to make recommendation to address musculoskeletal issuses.