My Apologies for a delayed reply. I have a few more questions in relation to your question. I believe once you begin the journey down the corrective exercise road you will quickly realize that everything IS connected and a ‘part’ approach to treatment doesn’t allow for the many other options to help with the solution.
An example might be using the arms and or nose to drive the posterior chain in the necessary plane of motion to say help a knee issue.
I would be happy to share more on this topic if you would like. Let me know.