Re: Qigong with Shoulder Limitations
There are so many kinds of qigong and not all require a lot of movement. Ideally you need a good teacher who can give you exercises that will suit you but that's not always easy depending on where you live.
I learned from a teacher for a while and then I looked at lots of books and videos. I think it's good to get some kind of direct teaching first so you get the basic principles right which are common to all qigong
Anyway as regards qigong for restricted movement the advice is usually to do the movemnt to the extent you can and gradually increase as it becomes more comfortable.
Some forms of qigong require no movement at all. Sitting and standing meditation is probably the most important form and is static. Some standing methods require holding arms in static positions but that's not essential either.
A good book you can get on these is 'Qigong Essentials for Health Promotion'by Jiao Guorui. Static exercises like this will also promote the internal circulation of qi to repair areas that need it. They can do that because total relaxation actually promotes energy flow
A system which I practice is called CFQ and the and it has exercises to help even people who are paralysed. Walking can be qigong if done the right way. What's most important is the way you use the mind. You can even get benefit from visualising movements
I think you need qigong that will also specifically help to improve your restricted movemment and ideally find a specialist in medical qigong who could advise you how to do that.