I have hypermobility syndrome (as a variant of EDS), and I need an exercise(or exercises) to strengthen my sacrum that do not require dynamic movements. It is not uncommon for me to have joints slip out of place while moving, regardless of strength level. So the trick is to find something that allows for a certain amount of muscular development to minimize the freedom of movement in my lower back – without causing undue movement in the process.
Any suggestions would be welcome.
I agree with the above comments re. clearance and guidance from a physical therapist (PT).
Once you have that and have some direction, I would ask about pilates. It was designed for injury recovery. I know yours is not an injury; however, there are overlaps.
Many areas have group classes with reformers and the instructors ask first thing, do you have injuries/limitations. I’ve been impressed with their ability to modify.
All the Best,