Hello Lindsey Wold,
To add, I would also add light to moderate strength training and discourage the running, for now, to save the joints. I am sure you already know to spend more time with the warm up, cool down and stretching.
Maybe you could get the client to trade the running for swimming, which is a great workout without the stressors on the body.
Good luck to you both. I am glad that she knows exercise is medicine.