I am so grateful for ACM. Most recently, I hurt my back (mid-back, right between my rib cage and hips) in a big way and could barely stand, sit or or even breathe without being in complete agony.
After doing the exercises for 20 minutes or so, I could stand and get through my day in a lot less pain. I continued to do the exercises several times a day for the next few days and was probably pain-free within four days.
It is really amazing what ACM can do and I don't know what I would do without them.