Being that your client has been cleared for exercise, she needs to focus on three primary categories: 1-Stretching. 2- Stabilization. 3- Core Strengthening.
Stretching is crucial to maintain normal ROM. These stretches should be prescribed by her physician and/or therapist. These stretches should be executed slowly and without any bouncing movement. The stretches she should be performing should include low back, hamstrings, and Psoas Major. Again, her physician should prescribe specific stretches based on her condition.
Stabilization is also very important. Focusing on training the lumbar extensor muscles is most important. Pilates and yoga are great forms of stabilzation exercise because they are performed slowly and in a controlled matter. There are various exercises with medicine balls and balancing machines as well.
Core strengthening is crucial in assisting in any back pain. Strengthening the low back and abdominals.