Spondylolisthesis & Stenosis Exercises What Exercises Are Safe For Someone With Spinal Stenosis (L2, L3), Spondylolisthesis, AND Osteopenia?

What exercises are safe for someone with spinal stenosis (L2, L3), spondylolisthesis, AND osteopenia? - spondylolisthesis & stenosis exercises

I know that the curvature of the spine, good for relieving the pressure from spinal stenosis, but I understand it is dangerous for a person with osteopenia, because they can cause bone fractures. I'm interested in the exercises that keep muscles strong synchronous master.