The chiropractic adjustments depend on how bad your back is and how well you respond. There are no magic numbers. I'd stay away from break falls until my back was healed. Make sure you stretch well also before training. Sometimes it is necessary for more aggressive treatments such as epidural steroids injections.
Lumbar stabilization exercises are core stabilizing exercises-exercises to stabilize your core muscle groups. Here is a good website that has some exercises for core stabilization.