After broken L4 vertebrae I was looking for which muscles depend on it. First I tried Wikipedia search with luck http://en.wikipedia.org/wiki/Lumbar_spinal_nerve_4
It listed the following muscles:
quadratus lumborum
gluteus medius muscle
gluteus minimus muscle
tensor fasciae latae
obturator externus
inferior gemellus
quadratus femoris
Because I don’t know the exact location of the muscles I search in on zygotebody.com Thanks to visualizing I better understand and know exactly the location of the muscle in me.
Now that I have the list of muscles I can search by their names for exercises, best place to start is maybe YouTube. Starting with the first muscle the following exercises look promising:
Some explanation of a therapist https://www.youtube.com/watch?v=_4P6eIuxq6A
Mikha'el's Blog 