This is an instructional video on core strengthening using the physioball. It is an intermediate level exercise program for strengthening the muscles that are the best stabilizers and shock absorbers for long term spinal health. Please make sure you are cleared to perform exercises in general and core strengthening in particular by your healthcare provider before participating in this program. When performed correctly in a pain free manner, the exercises have been shown to be very safe and effective. That being said, Lanier Therapy in Motion accepts no liability for any injuries sustained while performing unsupervised exercise.